I'm not an x's and o'x guy either, but I believe what you said is true. If you jam the receivers at the line, you would be throwing off their timing. This would make the QB's timing off also, which in turn would make him have to look/wait a couple of seconds longer. This would give the Dline more time to get through or just push the oline backwards, collapsing the pocket.
The problem I'm seeing is that even if this happens, other than EMart, our dline just dances with their oline. If they kept pushing, all kinds of good thing could happen. They need to be more consistent at pushing upfield.