In my honest opinion the base shield charge should have started out aoe, then applied the morphs like they are.(keeping the aoe of course)
And if you want to be really friendly I would appriciate it if you cut the damage 25% and disorient 50% of power bash and make that a 8 meter AoE attack as well. Then let the morphs build off that.
This will help with group aggro by a massive amount.
This is just my opinion. I could be wrong, it's happened once or twice.