I can agree with the rehashing....to a point. I think that everything is at least flavorful and definitely takes some creative leaps. Such as the kineticist's burn or the occultist's implements but I do agree that a lot of it is needlessly complex. I would never show a new player Occult Adventures, hell I don't know if i would full trust myself running one given that I don't have a real knowledge of system mastery.
But yes, some of the effects do definitely duplicate other classes while trying to be unique, but the alternative is 3.5 where you had 6 million classes that were shoe horned to do two things. Paizo will continue putting out new books and possibly new classes and I would rather see the ACG or OA style books rather than 3.5 prestige class plethora, though that is of course only my opinion.
As for balance, I won't throw my hat in that ring, I don't understand what separates tier one from two well enough to go into that discussion, nor was that what I intended from the thread.