I can't really see them reverting the changes. I don't have much faith in them making positive changes for any healer in an expansion again, and I think they probably feel justified with this one. Since everyone always wanted a balance card they just made all the cards balance, that's their solution. Also I don't think they could just revert it, they'd need to come up with all new things for cards to do, especially spire, and also do something about their perceived button bloat that they 'solved' by deleting things like royal road and spread.