Imo Brinstar+Rainbow should've been banned before MK. Honestly most of MK's dominance is due to those stages, I swear many close sets vs top MKs woulda been taken if those stages weren't legal. Yes some other characters such as bottom tiers can benefit of these, but if the stage is so ******** that it makes you drop a game to a bottom tier in a matchup that you clearly ahve the advantage/know, that's the proof of how dumb the stage is. No offense to low tier mainers though, if you have the dedication of playing a bad character anyway, you should be good enough with him to go toe to toe with other characters in neutral stages.
The reason to ban him isn't because he's really that broken, it's just that he's overused. He's beatable MU wise and dosen't really break any character's viability(D3 and Ike are still bad without him and get ***** by like 6 other characters besides MK, same for other chars, they would still have problems.) While the community clearly wanted the game to be more diverse and not being centered to MK, banning stages would be a more conciliating solution than banning a character. Basically, banning him just proved the «laziness» of the community since people were «tired» of trying to work around him. I don't think this is the most «competitive» solution since as I mentionned earlier, banning stages is more conciliating in a ruleset, so let's see if Apex actually has a diverse top 8.