Ehrm... I guess absorbing kinetic energy is a new thing for Bishop because I can't remember him ever doing that way back when. Also I would need proof that he can absorb telepathic energy... just doesn't seem to make sense to me. As for the thing where he has to be "ready" to absorb things... I know I read in a comic a long time ago that he was telling the other X-men that his power doesn't have an off switch, so I can't see how that would affect him. Everyone was being held immobile (and haveing their powers blocked) by either Magneto's powers, or someone else's telekinetic power, or something like that. I'm too lazy to do the research if its that far back. Whatever power it was that was holding them was still feeding him, so he faked not being able to move until he gathered enough power to use against whoever it was.
The way they keep amping up everyone's powers is annoying though.