A lot of the "consoles are dying" rhetoric originated during the 2012-2014 period prior to the launch of the PS4 & XBO. The console industry was undergoing a contraction after peaking in 2008:

This fact was not lost on many analysts, who saw this contraction as a sign that consoles were done for. However, their arguments failed due to a critical flaw: it ignored the cyclical nature of the console market.

We've seen this continual grow-peak-decline-grow-peak-decline pattern for decades, and the 2009-2013 period was part of the "decline" part of the cycle as first the Wii and then later on the PS3 & 360 entered the terminal decline periods of their life cycles. While this generation won't be as big as last gen, that's because of Nintendo. They're the wild card. The Wii was huge but the Wii U was not, and time will tell if the NX does well or not. But still, the console market is back into its growth period as combined PS4 & XBO sales continue to grow, and overall sales are very healthy. Reports of the demise of consoles are greatly exaggerated.

A lot of people did, actually, ranging from analysts to gaming website authors to a few people in the industry to regular folks on discussions boards:

http://www.cnn.com/2012/11/09/tech/gaming-gadgets/console-gaming-dead/
http://www.seattlepi.com/business/fool/article/How-the-Gaming-Industry-Is-Getting-its-Head-4620642.php
http://kotaku.com/5973498/weapons-of-mass-disruption-3-how-and-why-consoles-will-die
http://www.techradar.com/us/news/gaming/consoles/console-gaming-is-dead-everything-good-is-happening-on-pc-right-now-1260162
http://www.gamespot.com/forums/system-wars-314159282/console-gaming-is-actually-what-s-dying-ironic-isn-31086566/
http://toucharcade.com/2015/07/07/tv-sucks/
http://www.forbes.com/sites/davidthier/2016/03/07/xbox-one-and-ps4-is-the-death-of-consoles-inevitable/#9240b5a7be19
http://www.pcworld.com/article/222153/angry_birds_exec_rip_console_gaming.html
http://tsl.news/articles/2014/2/14/lifeandstyle/4736-video-games-the-dying-age-of-the-home-console
http://www.examiner.com/article/are-console-games-a-dying-breed

Et cetera, et cetera. Just Google "consoles are dying."

if consoles are still being so successful right now after nearly 30 years is because there are so many people who prefers something more simple like for example putting a disk inside your console and play rather than having to worry about system requirements or having to pay more money and upgrade it to make sure newer games works properly on it, because lets face it the majority percentage of the gaming community as a whole likes things simple so they don't have the time and money or doesn't even care about that, and people who plays on pc who actually cares about doing that are also in the minority of the gaming community.

if it also had something to do with console exclusives for example i don't see why multi platform games are the ones with generally the most sales on them, it should be the other way around then, if everyone has probably a proper decent pc to make them run you'd expect them to play them on there and only play exclusives on consoles, and sales say that isn't the case.

i'm not saying they won't evolve in some way in the future, being able to play with them in a more digital form instead of buying them as hardware, but implying that they will "die" and that people will only play on pc on the future is just very unlikely to happen in my opinion.

Point being, analysts and the media loves a good "doom" story. They see any slowdown or decline and assume it must necessarily continue until the market in question is DOA. They also like to hop on any "disruptive" technology they see and assume that not only is it "the future," but that it necessarily will supplant what currently is. If all the "doomiest" analysts were right, we should already be playing all our video games on mobile, all the printing presses should have been shut down, and home video on physical formats would have ceased to exist years ago.

I can't believe how well it did.

A lot of people did, actually, ranging from analysts to gaming website authors to a few people in the industry to regular folks on discussions boards:

http://www.cnn.com/2012/11/09/tech/gaming-gadgets/console-gaming-dead/
http://www.seattlepi.com/business/fool/article/How-the-Gaming-Industry-Is-Getting-its-Head-4620642.php
http://kotaku.com/5973498/weapons-of-mass-disruption-3-how-and-why-consoles-will-die
http://www.techradar.com/us/news/gaming/consoles/console-gaming-is-dead-everything-good-is-happening-on-pc-right-now-1260162
http://www.gamespot.com/forums/system-wars-314159282/console-gaming-is-actually-what-s-dying-ironic-isn-31086566/
http://toucharcade.com/2015/07/07/tv-sucks/
http://www.forbes.com/sites/davidthier/2016/03/07/xbox-one-and-ps4-is-the-death-of-consoles-inevitable/#9240b5a7be19
http://www.pcworld.com/article/222153/angry_birds_exec_rip_console_gaming.html
http://tsl.news/articles/2014/2/14/lifeandstyle/4736-video-games-the-dying-age-of-the-home-console
http://www.examiner.com/article/are-console-games-a-dying-breed

Et cetera, et cetera. Just Google "consoles are dying."

PC gamers aren't in the minority for the last time:

http://imgur.com/a/TdcBE

http://hexus.net/gaming/news/industry/83972-pc-games-sales-eclipse-value-console-games-sales-2016/

http://www.dsogaming.com/news/digital-sales-of-pc-based-gaming-surpassed-32-billion-in-2015-outpacing-digital-sales-of-mobile-console-games/

http://www.kotaku.com.au/2016/01/league-of-legends-made-more-revenue-in-2015-than-csgo-dota-2-and-world-of-warcraft-combined/

http://www.pcgamer.com/there-are-711-million-pc-gamers-in-the-world-today-says-intel/

http://time.com/1875/at-20-million-copies-sold-skyrim-is-in-the-top-20-bestselling-games-of-all-time/

http://www.pcgamer.com/skyrim-sells-3-4-million-copies-in-2-days/

http://steamspy.com/app/72850

Skyrim for example has sold 20m copies worldwide across the PS3,360 and PC, Steam Spy shows just over 10m owners for the game which shows they made just over half more than two different console brands combined, there are even people still playing the game 4 years later on the platform compared to the number of people likely to play on last gen systems (which most people have now moved to current gen and the game on consoles being strictly locked to last gen).

You can scream and shout all you want about how console gaming>PC gaming but at the end of the day there are still more PC gamers than console, the revenue has been surpassed and the platform grows in number by each and every day and has been going for 3 and a half decades so far. Each time you get a console gen you get some million users, then that console gen ends and so do the numbers, they leave and buy the enxt branded console and shift to someone else, with PC gaming you don't really shift because the platform hasn't died and hasn't for 3 and a half decades which is why it;s only gorwn in size for both suers, games and profits to be made.