Meskr i've always been disapointed that they left key abilities from enchanter completely off of inquisitor. some have surfaced (like the rune break slow) but others like illusions are vacant how am i supposed to be under cover without illusions?
I personally love inquisitor because it's a CC tank, which is my dream configuration. i don't actually care all that much on it's dunking on caster stuff. also the dunking on caster stuff is kind of bad. mana burn is meh, the shield slam is sort of worse than just kick for the cooldown (but the damage is nice). the spell runes (and real runes) wear off absurdly fast for how long you'd want them up to be useful. I'd rather have more CC/tankins than (currently medeocre) anti caster stuff.
i think it would be fitting of the inquisitor theme of "tyranical enforcer" if they made SOME Of the 'anti caster stuff" just work on people all the time. make the mana tap just do mana damage, and if mana is empty (or no mana) it does HP damage. then does the mana restore all the same. why? because it's based on causing pain not on siphoning mana.
I'm still planning to go inquisitor, but reading over the other tank reworks and comparing to current state inquisitor does not spark joy. (i made extensive notes in my thread about the test of the rework).