I wanna say 2 things about this debate-
First, being a Diddy main, I'm all for what Allan is doing! (I'm joking, but seriously it could only favor me not having to worry about playing an MK on RC or Brinstar haha)
Second, I think the way Allan feels is that MK isn't NEARLY as broken if he's not able to exploit opponents weaknesses/his strengths on certain stages (hello Brinstar, Delfino, RC, LM) but he also feels that if it's really not MK but the players, they'll end up winning anyway (which is undoubtedly the case for Dojo and M2K).
To a point, I agree, but this isn't the right way to be going about doing such a thing. Imo it should be done at a few Hobos and embraced or rejected by the community at large before it's even contemplated for WHOBO (which, regardless of ruleset, I'm going to, just because my WHOBO experience last year was so amazing).