You sure are watching a different game than I am. It has almost nothing to do with routes, it is a QB that is simply no good. If they don't try Dobbs I'm done with this group.
Your suggestion pretty much broadcasts to the defense "hey we don't think we can pass the ball at all, so don't worry about it; we're not really going to try. Just thought you guys should know that"
Kind of like us running the option right now. How many times has the QB actually not handed the ball off. If there is no threat of the qb running why bother.