The babip this year was due for a regression, but it's not only that. He looks like a totally different hitter at the plate now. His swing looks different (almost loopy), he's swinging at a lot more out of the zone. Even early in the year when he wasn't hitting for much power he was walking a lot. That's stopped as well.
But it's everything. Even the way he takes pitches - he's not nearly as quiet as he was before. It was like he was in some kind of hypnotic trance before, and now it's like he's woken up and the game's sped up on him.