It's a thing but neither of them cracked even the top 10 for Switch sellers, whereas during the Wii era those types of games completed dominated the top sellers.

There also isn't really any big evolution from the Wii Sports/Wii Fit (now Ring Fit), like even since the days of the Wii, the next big thing was supposed to be Wii Music, and that never really took off in a huge way and it sort of felt like after that Nintendo struggled to come up with any kind of big new motion control idea. 

The bar for top 10 is higher on Switch than on Wii; if Switch Sports was on Wii is would be #8, ahead of the likes of Wii Party, Just Dance 3, (the best selling JD) or Smash Bros Brawl.

It would also be behind Wii Sports and Wii Sports Resort, so it declined from there whereas other Nintendo IP like Zelda and Animal Crossing and even Mario Party have skyrocketed since the Wii era. Like I don't think anyone looks at that gen (PS4/XB1/Switch) and considers Switch Sports one of the generation defining games, whereas with the Wii/PS3/360 era ... of course Wii Sports and Wii Fit were the big notable games, probably really those two and Call of Duty (X360) and GTA were the main titles of that gen. 

Being below the all time peak doesn't really mean anything; no Pokemon game has topped Red/Yellow/Blue in sales to date, yet the series is still very much successful, likewise no PS console has topped the PS2 yet PS4 and 5 are still very successful.

Switch Sports is actually selling much better than latter Wii series games like Wii Party, Wii Play Motion, Wii Fit U, and Wii Sports Club, so in that sense it's actually increasing, not decreasing.

Well I mean yeah, Wii U is a very low bar to clear. 

True, but Wii Party and Wii Play Motion were Wii releases, and Switch Sports has outsold those by a lot.

Switch Sports may not quite be the cultural phenomenon that Wii Sports was back in 2006, (kinda like Pokemon never quite managed to top R/G/Y) but it's a highly successful game that shows this kind of game is very much relevant in today's market.

That's probably a bit of an understatement, lol. 

The number of games in history that have been as culturally transcendent as Wii Sports is a short list.

It's a bit like how no PS console after the PS2 was anywhere near as dominant, but that doesn't change the fact that PS4 and PS5 are highly successful systems; likewise, Switch Sports is a highly successful games with a level of sales most games would kill for.

The local multiplayer via split screen of Golden Eye 007 was a great solution to offer multiplayer FPS games on one device! Kudos for that!

Connecting two (or more) consoles/computers for local multiplayer connected to different displays in the same room (f. e. the PS1 version of Duke Nukem 3D) was always a nerdy niche solution with no appeal to the mass market.  

But did Golden Eye 007 really had a long lasting impact on the broad console market?

Many console gamers already wanted FPS games before Golden Eye 007, which lead to ports of Wolfenstein 3D, Doom 1 + 2, Duke Nukem 3D, Dark Forces, Heretic and Quake to SNES, Genesis, Jaguar, 3DO, PS1, Saturn and N64.

And as soon as internet connections became more common and the new consoles (especially Xbox, but also PS2 and GameCube) supported it, multiplayer in FPS shooters shifted pretty fast from local splitscreen to online multiplayer.

I would say, Halo had the longest lasting impact for multiplayer FPS games in the broad console market.

Tomodachi Life pretty much broke every rule of what makes a game. I would say that is pretty revolutionary.