I guess I just disagree fundamentally, at least from a melee perspective, EXCEPT the arcane sphere. If all I have to do is cap one destiny, then dreadnaught for melee, fury for primal, both are great. Yes, one is better, but both are good. If i want divine, eh, unyielding. Is it great? Nah, but it's tolerable. Yes, if I want the arcane sphere ones, I need to be in a **** destiny.
I guess from a caster perspective this would all change, but frankly, the benefits aren't good for DC casters anyhow.