By the way, one small note about Astrologian's aggro :

Back in Heavensward, Ast had aggro issues. His MP regen, Luminiferous Aether, was reducing aggro generated under its effects only, every 2min.
To fix that, they added an aggro reduction directly on their sect.

But now, in Stormblood, they all have Lucid Dreaming, which is the old Shroud of Saint that halves enmity already generated.
That and the passive reduction, that's why Ast is in this position, they didn't change anything.

Not resolving Whm problem i know, but that wasn't something they wanted to give to Ast and not Whm.