Microsoft more-or-less does the same thing with Windows in the personal consumer market. With Office being online these days, the primary motivation for a lot of people to buy a Windows license for a computer instead of using Linux or buying a Mac is gaming, along with pure inertia.
This will be a problem with everything until games are FLOSS.
I mean there is nothing stopping that right now. You can give up your time and learn game programming and asset design and make a game and give it away for free.
I don't think games companies are against mods generally, many have steam workshop support built in. Nintendo as the big exception here ofc.
Cheating is ofc a huge problem for multiplayer games and can absolutely tank some genres. Very mixed feelings about the kernel level rootkit type spyware but there's no denying that games companies are paying big money to put them there for the players benefit.
And I do mean Super Mario 64 with respect to the technology/artwork level. Which is fine by me.
But the big AAA games and the multiplayer games that all of the hip young people with their poggers Twitch streaming and their deadass rock music play? Yeah, can't build those given the state of everything these days.
Zelda was weird and impractical outside of the standard controls, but still somewhat benefited from NFC.
Splatoon plays a lot better with the motion controls, NFC is actually a nice QOL improvement. A game like Arms is also nicer in split mode, even if core players tend to get back to the standard controller mode.
I see it along the lines of the Allan Kay "People who are really serious about software should make their own hardware" quote. Nintendo should stay serious IMHO.
Games also benefit from a single vision in general, which is hard to square with volunteer style development.
There are certainly exceptions of games that are built as a community: nethack, space station 13, idk probably a third one. But I just can't see this being commonly done until we figure out how free software devs can eat.
With that said: I love free software and hope this problem is solvable, but unless society changes dramatically we may need to learn to do without not just AAA scope games, but even Stardew Valley scope games
But if this became a common practice I think people absolutely would. Tons of professional quality games instantly available for free is such an incredibly good value.
You use Super Mario 64 as some sort of low/achievable bar for what volunteers might be able to build, as if SM64 is an easy game to build, yet nobody is building games like that on a volunteer basis.
Even look at the engineering that went into OpenMW: once again hackers were only able to recreate a game engine that runs existing game files (Morrowind) which is the easy part of building a game.
For Splatoon it's used to quickly switch to preset weapons and gears as well, which is nice. You widly experiment with your gear and instantaneously get back to your "serious" setting at any time.