Is there an official stance as to why some subclasses have 1 unique to them perk?
Aetherwalker Psyker has +10 % dmg per character's buff.
Each of the tech adepts has their own perk.
It'd be of a real help to be able to get all the perks on each subclass, even buying them for Fate would work.
Having to reroll level 80 char because you want to try a build with one of the unique perks - sucks.