What if you just made it so you can't use feathers while in guise, possibly reduce feather speed to 60-70% as well I think would be slightly more balanced. Priests really need the feathers because they don't have much (on our own I mean) in terms of getting away from melee(roll, freedom, displacer beast, freedom totem, etc).
IMO it should act like that because it's spammable (locks ofc). Something that is literally spammable I don't feel should be so strong.
I'm not really sure what to do about fear pathing except maybe putting a limit to it. Otherwise if you just have the stand in place or even the blind path someone mentioned you may as well call it polymorph and start making glyphs to make it look cute.