Most of these aren't really changes at all, but instead consist of changing the names/animations of existing abilities or swapping the names, and functions of existing abilities so that they feel a little more thematically coherent.
WAR
Swap the names of Storm's Eye, and Storm's Path. The eye of a storm is supposedly relatively calm so Storm's Eye should be the GCD you get the heal from whereas Strom's Path is where you should get the damage up buff from because that is where the destruction happens during a storm.
MNK
Just swap the functionality of Form Shift, and Perfect Balance. This doesn't change MNK's rotation at all, but just swaps the functionality of existing abilities where you just press Form Shift to start your Blitz combos, and use Perfect Balance to kickstart you form combos.
MCH
Change the name, and animation of Hypercharge to something heat related like Ventilate or something. I feel like Hypercharge's name, animation, and sound design implies it has some interaction with the battery gauge. I also feel like Flamethrower could be reworked to be the AOE heat spender, and Auto Crossbow could maybe be added to the multitool rotation, but I'm not sure because Auto Crossbow is kinda just satisfying to spam in dungeons.
Also Barrel Stabilizer seems like it should be a Resemble upgrade, and should be called Analysis considering how it's used in PVP which means MCH needs another heat related button that grants free heat gauge.
These "inconsistencies" kinda bug me a little more than they probably should, but details do matter. Are there any other job actions that kinda feel 'thematically janky' to anyone else?