I think too many stages are banned. Also, final destination IS balanced among the top, but between the top and bottom of the tier list, it can create so many unwinnable match-ups, making it probably not a starter in my opinion. The main problem is that almost all of Bowser's good CP's and Zelda's are banned. Temple and Spear Pillar I have found can be great Zelda CP's. Though their banishment IS due to circle camping, which could warrant a ban of the stages.
Except for that we can always ban circle camping itself. If you're running away from your opponent to gain a better position, and you run a complete lap or worse: 2, then you would have already passed that position. If a tactic is broken on a stage, then it fits the warranted criterion for a ban on that stage for sure. And items can be balanced too, but I know debating items is a lost cause. Temple, matches still may be at risk of running to the time limit, EVEN WITH ITEMS ON. I will admit that. But I think there are too many banned stages right now.
Edit: Should be more specific. Non-interceptable circle camping to completely stall the clock out. In other words, the main reason for Temple's banishment. Though Temple would still probably be banned for other reasons. But some of the others: ex. Spear Pillar, might not warrant it any more. Only the version that warrants banning stages would be banned.