Reasoning for removal of TP, but not MP?

[miraidensetsu]

No, MP management has far more use beyond "stop spamming AoE"
In fact most mages have their own, sustainable AoE rotations anyway. That arbitrary barrier just doesn't exist for mages like it did for physical.

A RDM will never run out of MP unless they cast Verraise.
A BLM will never run out of MP, period, but it dictates their Ice/Fire rotation.

With the new hard limit of 10,000 MP, there is a chance that SCH and AST go OOM if they are aggressive enough or is trying to ress everyone back. And a healer going OOM is way worse for the party.