Not sure what I think of voidform/insanity. Is it another RNG proc-based or proc-ish gimmick? Or some kind of new "try to get work done fast" mechanic like old bloodlust or the star in super mario bros. Seems like:
procs/RNG --> star-form --> force cooldowns --> get more RNG --> moar star-form.
Sounds like something the kids in 2016 will love to play.
Spriests have had an extra chromosome since MoP/Holinka. Any finesse in the spec was abolished by RNG-based mechanics. I'm not even going to elaborate the ability pruning and simplification - everyone knows how/why we lost all those oldschool intricacies.
I'm referring to the overall clobbering of spriest skill-ceiling due to rng gimmicks.