He probably regrets that he sold Lukaku, but for De Bruyne, they were stacked in attacking midfield, and he came back from loan and wasn't going to get regular games. Made sense to let him go at the time, and they got a decent fee. Nobody said it was that stupid at the time really.
No he didn't, the only teams who have less shots and shots on target then we do this season are West Brom, Newcastle, Villa, Sunderland, Norwich and Stoke.
Yeah the poking eyes thing was way out of hand obviously. As was Fergie kicking a boot at Beckhams face but just like Fergie regretted doing that, I'm sure Mou regrets the occasional lash out that happens in such a high stakes situation.