Absolutely disagree with the “must be considered as good as Hasten, Weave, Maneuvers, etc. before you can nerf it”. Those powers are at the far (good) end of the bell curve, yes, but IMO everything on the entire “better” half of the bell curve is fair game for balancing.
I also think the only reason the big 4 pools meta hasn’t been nerfed to encourage build diversity is because the shitstorm would make this thread look like nothing - not because those powers represent the epitome of reasonable balance.