Don’t make me point to the sign with people standing on boxes in front of a fence.
This should be very easily solved with matchmaking lobby settings.
Anyway, most accessibility settings are either something every competitive player should be using anyway (reasonable color contrast settings, HUD tweaks for clarity) or things that only people who need them despately would ever use (remapping all buttons to be able to play using only a stick in the players mouth, because they have no hands).
This seems to me like a total non-issue. And in the very few cases it is, the ranked lobbies can just diable that setting.
The backlash was probably because for you and I a harmed pvp experience is a “could happen” while for a bunch of gamers the lack of accessibility is a daily undeniable part of their reality. For some people, games are a critical sanity-saving retreat from the rest of their life. Let’s let them have their tweaks outside of ranked play.