I generally agree with the accessibility arguments against doing anything for this, but if you are going to do something, I feel like "give dev's a way to opt into this check, limit to online play" feels like a reasonable system. That would allow fighting games in particular to not opt in.
Sony has something like this setup with screen recording, where some parts of games (cutscenes in some stuff) can't get recorded. It's annoying, but at least it's not the whole game, and the feature exists.
> give dev's a way to opt into this check, limit to online play
In theory, that would have less of a PR risk / impact, too -- if they provide it as a configuration option, they can shift the blame onto third-party devs. who change a value in some XML file somewhere.
(Not that I particularly care about Microsoft's PR, just thought it to be interesting commentary.)
Sony has something like this setup with screen recording, where some parts of games (cutscenes in some stuff) can't get recorded. It's annoying, but at least it's not the whole game, and the feature exists.