Well.... they did kinda give the whole mature warning thingy at the start of the conference. But I get you though, they probably should have put up another one just before that trailer. 

As for people being upset about it.... I don't think there is anything wrong with being upset about it. I think things like that should upset people... if its being done right it should make you look away. But i don't see that as a abd thing. Its accurate. But these strange game journalists we have are calling it violence porn.

I didn't think it was very violent. In fact, pretty much nothing happens at all.

OP fundamentally misunderstands the issue people had with that trailer.

People tune in to press conferences to find out about the latest games, which in this case were presented as a series of trailers with little to no connection with one another.
Trailers such as the one for The Last of Us 2 and for Detroit were thus presented alongside trailers for Spiderman, GoW and Concrete Genie, which either don't feature violence or have a fantastical version of it.
This creates a noticeable and not-justified tonal shift, which obviously is not the best way to present your game.

What people also opposed to is the trend of using brutal, hyper-realistic violence, especially against women, to sell games and media.
Nobody doubts that TLoU2 is going to be brutal, but maybe not everyone wants to be reminded of that if they are tuning in to see how Spidey is shaping up.
As many have noted, a TW before the trailer would have gone a long way, since even if there was a Mature warning before the event, many (myself included) clearly missed it.

As an aside, Mature in games seems to mean "has blood", or "suggests people fuck". I was playing supposedly M-rated games in my early teens. Age ratings are inconsistent at best, and often easy to ignore.

I hope that reading any of the dozens of articles written on the subject you'll understand that the criticism was levied mostly at the games' marketing, not their content.
SELLING your game on brutal violence and MAKING a game about brutal violence are two quite distinct topics.
People trust Neil Druckmann (and to a far less confident degree David Cage) to tell these stories, but they don't think marketing based on real-life violence, something people might have actually had to live through, is a good idea.

This marketing feeds into issues of stereotypes and tropes bigger than the games themselves, and painting critics as "offended" and "duplicitous" is a sad excuse to avoid discussing how this industry will approach or even talk about heavier subjects going forward.

I just want to say that there was a lot of complaints about the Walking Dead season premiere. People quit watching the show because they felt it went too far.

I quit watching because it sucked.

I didn't think anything of it either myself.

Not sure if people are being intentionally dense but the violence depicted the trailer was far beyond the realms of realism that you'll see in 99% of all other game comparisons. Its also a very particular kind of violence which which gets under the skin more than just a quick gunshot to the head etc.

Arguably the most important thing is the audience which ND games appeal to. Although the games are violent, its been part of a wider, expertly crafted story telling experience. The audience for this game is not necessarily the same audience for other M-rated games which rely gore for cheap entertainment. The violence was used as a marketing gimmick whereas that wasn't the case in the past.

If this was experience in context of a 14hour game, it MAYBE wouldn't feel so gratuitous. But again, its a matter of taste and again many TLOU fans do not enjoy extreme violence for the sake of violence.

You already point out why its not double standards. The experience of the two things are infact different.

Well... it's the kind of world they portray in TLOU. It's gratuitous violence and a reason why i don't enjoy it very much.

It was graphic, but it was to be expected. It's in the same vein as the first game. Can't say that one is a masterpiece and this one is somehow wrong. So, yes, i agree theres double standards. In my case i always disliked it, so theres no double standards. :P

There is no double standard because one person can like something while still disliking how it's being marketed.
The exact same complaints were levied at marketing for the original game, so it's not like it's a new thing.
Maybe try listening to the points other people are making.

To the point, the violence in The Last of Us was far from gratuitous, it was built to over the course of the game.
For example, Joel without Ellie s far more vicious than when he is with her, but to fully appreciate it we had to spend time with him wearing a "mask".

The original didn't just go to torture right from the get to really tense torture at min.1, yet this trailer does.
This does a disservice to the way the actual game treats violence, making it, as you said, feel gratuitous.

especially women ...

[It's so sad that we live in a world where I have to explain that a deliberately ironic comment]