For a good couple of years before the general ban on the Mach Loop, the Tornado Force had been clamping down on unprofessional flying of the type seen in those videos. There was a small handful of crews responsible for most of it and they were counselled appropriately. Frankly I wouldn't be surprised if the Loop ban is made permanent; it had effectively become a venue for unauthorised display flying. Which is what non-SOP flying (reheat, aggressive valley flying in 67 wing, Typhoons twinkle rolling etc) for the benefit of an external audience actually is.