They basically fixed Tank TP issues. It used to be very serious in earlier times.

War: Single target never runs out of tp. Using beast gauge GCDs costs no TP which alone is enough to stop from bottoming out ever. Equalibrium on top of that if DPS stance.
Pld: Single target has spells baked into their lv 70 rotation.
Drk: Between lowered TP costs and use of bloodspiller (no TP gcd) Drk has no problem either.

AOE Pld and Drk both leverage their MP pools instead of TP. Pld just bounces between flash and DPS. Drk has many ways to regain MP quickly. War has equalibrium to support overpower spam.

Tank TP is the best its ever been. Single target no tank has a problem anymore. AOE is SUPPOSED to be resource intensive as it is for all jobs save blm and they still have ways to manage it through MP usage or equal. Its fine.