I hope they don't get rid of positional entirely.

"Should they remove positionals at this point? "

No. I'm glad they did what they did in the patch 4.5 for MNK (and True North) because O9/10/11 and Seiryuu are changing direction pretty quickly but Positionals have been part of the signature of MNK (and other Melee DPS). And I want to keep that.

It's ok to have no positionnals for Massive multiplayer content like Eureka or Solo content like Deep Dungeon. But If you get rid of that entirely, It will be more boring as someone said previously that "Rythm" Fight of FF14 are too scripted rotation when you know them, so it will accentuate this state if you do not have to adapt your movement with the mechanics to get the extra DPS.