He does. He has always had a problem leaving outside off stump. He gets bored seeing the ball constantly fly by and can end up wafting at one.
The best thing about Bazball is convincing players it is ok to fail and it is ok to be yourself. Aside from the others I mentioned, it brought Bairstow back to form (prior to this series) and that is a huge boost for the side.
And... has to be said this side has never been better to watch than it is now.