There's a lot of conflicting information here. The big one that people don't seem to realize is that Capcom actually had a part in increasing the RAM size in the Switch, showcasing SOME interest in the system.
However, I do believe that Sony has been throwing a LOT of money around, and I think Microsoft has been doing the same thing to counter this crazy juggernaut. It also helps that the PS4 and Xbone (no matter the version) are very similar architechtures, and so make things easier to port. I've always been pissy at developers getting lazier, and when the PlayStation 4 was initially announced as having x86, I knew more creative companies would be a bit more doomed without something that would push the market further.
Nintendo, in its path to be different, has made some concessions. Talking to nVidia was really interesting, and has lead to some very good sales and profits for both nVidia and Nintendo. Sales of the system are still very consistent, and with heavy hitters coming out over the next six months, the Switch will still be very relevant.
I've never liked 3rd party support when they're not sure of something. Ubisoft STILL stings when it comes to this, as they did not release the Wii U version WATCH_DOGS at launch, opting to wait six months. While the other games were rating poorly, it seemed like the Wii U version, whether ready or not, was poised to fail due to people not wanting to buy the game anyway. Then Ubisoft was poised to pull away from Nintendo's console, using WATCH_DOGS as an excuse. ("Look! It did poorly! We should walk away from the Wii U!")
Skyrim is a big thing for Nintendo. I'd have liked to have seen more support from Bethesda, but they've always been a PC developer anyway. I played FIFA on the floor, and while I'm not a big fan of the series, it worked well on the Switch...well, from what I could figure out.
It seems like the best thing for Nintendo to do is to break open the Wii saving coffers and start throwing more money around to entice developers to the system. It's quite about specs (It is somewhat), it's more about how much the company is willing to spend on 3rd parties to entice them. Money talks, and right now, Microsoft and Sony seem to be spending more of it.