Note that in that video they also said that their still tweaking which AA’s to have and whatnot. Could be different in the final MP version. (I know the games finished, but they will most likely still be tweaking the MP damages and stuff)
Yeah, honestly it just looks like you can attack while you thrust.
Maybe you will be able to fire your guns while you thrust too? Just your reticle will be gone, and your aim will be disoriented, so you are very unlikely to hit your target when you do it?