Mmmmm.....
Well not knowing which country the "Red Bull" Boelkow is registered in .... and assuming its on a civil register .... I would suggest the pilot doing the "Aeros" is in fact breaking a few rules .... particularly the bit in the flight manual which states "INTENTIONAL AEROBATICS PROHIBITED" ??????
Still I think he's having much more fun than he did with the Jetranger he used to play with ?
Cheers