Some of your ideas are interesting, if unrelated to this thread. In your example, I'd like to see the choice for the tier 3 exalted angel autogrant be wings or aura, take your pick. I bet there's some FVS who wouldn't mind having aura.
I don't care how many melee bonuses you give casters, I'm not going to equip my casters with melee weapons just for destiny abilities. I have melee alts for when I want to melee. On my casters I want to cast.