I'm guessing he's just trying to dig in and buy some time, given there is plenty of it, but without watching the stream it's hard to say. His batting technique has changed significantly since he played down here, he used to be very correct, now his set up is predominantly to hit through the leg side which I would have thought means you can get dried up a bit too easily.
He's been opening in T20 matches, that would have something to do with it.