Nothing went wrong, BPC. SuSa indeed made objective ban criteria, something that was discrete, concise, and enforceable. The problem was that it was simply the wrong criteria. Well, I mean, "wrong", if you think (like most people do) that chopping out 90% of the stage list is not a measured response.
Like I said earlier, if anything, this proves just how intertwined PvP and PvS is in Brawl. This shows exactly how much the game requires you to need to develop skills that assist in interacting with the stage.