Proposing a change of wording the rules for Any%. In the current ruleset it puts "complete All A-sides" and I'm sure that is just because the possibility of using a B-side route was not considered. It would be simple as editing to something like beat the game or unlock the credits from a fresh file replacing that line and that's all.

Something generic like that would work in the current version allowing B-sides and banning them if something changes with the game.

We can talk for hours about the viability of those routes, being 100% honest I don't think anything will change for real, that just would be correct according to the concept of Any% regardless of whatever opinion anyone can share.