Ok, so I can confirm that Skill Blooms are working as intended at least for me.

As for Raid Bosses I should explain where I'm coming from. I'm Australian and sharing to public is my only option if I ever want a RB to die. I get annoyed by the fact that people in Public are only poking event bosses with a 2* and I often end up losing bosses because of this. It's a timezone thing I know but I can't play when you yanks are awake more often than not.