Wasn't it more like Taylor had been staying in the backfield most of the game to pick up a blitzing linebacker, and on that final play, UCLA surprisingly dropped the LB into coverage in the middle of the field? When Taylor moved to the spot where he expected that linebacker to be coming from, he quickly realized he could release into the flat and be available as an option. Seemed like a surprising decision by the defense and a quick, accurate read of the situation by the RB and QB, more than trying to hide Taylor in the backfield were what allowed that final TD to happen.