Since Stormblood, TP has been pretty much useful only in dungeons and the rare aoe situations in raids with nothing else to gain from it during single target situations. Back then, TP was almost always running out if you're doing your rotation right and have high Sks, and regeneration was needed. Now, even MCHs/BRDs bring Tactician for nothing but enmity controls during raids and aoe situations during dungeons.

I really like what they did with TP in PVP; use the TP you have to be able to spam skills, and good use of TP rewards the player with stronger attacks than TP-conservative play. It's a style SAM uses in the form of Kenki gauge, you use your gauge to spam Hissatsu skills for both your highest hitting attacks and plain movement utility.

Maybe TP could use a similar treatment? Most classes almost never run out of TP no matter what goes in boss fight. Even when you're hitting enrage in a raid, you'd be lucky to see it less than 800/1000. Maybe I'm asking for unnecessary complications added to the rotation (let's face it, rotations are already brain dead as things stand), but I feel there's so much wasted potential. RDM and SMN can use their gauge (MP) for utility (Raise, Manashift) and those are helpful across all content. TP exists for...aoe?