he wasn't wobbled by a jab, he was pivoting on his front foot and got caught just the instant his rear leg was moving. also did you notice how much better prescott looked to that vid in youtube, his defence looked good, and had a lot of speed on those hooks along with accuracy.
He might not have done his full on chicken dance, but it certainly shook him. It looked like a mini Ali shuffle.
I don't normally read too much into how a fighter warms up before a fight (Lennox Lewis used to have 40 winks!), but he did look like he had some real substance to him. I'm starting to wonder whether that last fight of his on Youtube was put there on purpose to lull people into a false sense of security.