did i have said weak? i have said that i found it inefficient because we lack in raptor an aoe for have a true rotation of aoe. in this form it's an incomplet toolkit that can be used, right, or simply ignored for focus on mono target dps, what i have said.
if they add an aoe in raptor form i will be more than interested to use rockbreaker. but in this form actually, it's not that great, it's a cool skill that have a 6 sec of cd (in best case) draining extremely fast our tp.

and one more time it was heated debate about what is the more efficient get a global dps that deal a small damage to the whole group or kill fast one target without run out of tp. it's a different way to play, both have them advantage.

all in all, if they don't improve our toolkit based on the form, rockbreaker is an imcomplete skill that will drain our tp without deal enough damage for be really usefull to the group.

and it's seems you tend to forget that they try to reduce the number of enemy pull at the same time, meaning that AoE will have less utility.