Also people keep saying that now Summoners have burst dps.

Excuse me but where did they say this? Yoshi said we spend our first 30 seconds applying dots and building Bahamut aether stacks, THEN you go into Bahamut "trance" where you build energy to spend on Bahamut themed attacks. Iam sorry but that is not burst dps, thats alot of building up and saving stacks of crap to then switch to a stance to build more crap to then spend the crap