What would you do? 2 fatal accidents involving vintage jet aircraft? Wise caution until the causes of both accidents are fully established and future risks considered.
The ban is on high energy manoeuvres and aerobatics, not on flying of all vintage jet aircraft. While mechanical failure is a possibility the airframe was apparently intact until point if impact ( to be verified) which perhaps does not indicate any obvious major structural failure.
By reducing G not only does one limit the risk to the structure but also the affect on pilots, some of whom are not exposed to daily levels of G which our military colleagues are. This may not have been a contributory factor but needs to be ruled out.
The sheer momentum that a fast jet has, in comparison with lighter piston cousins is obvious to see. If one reduces the initial risk of accident then the potential negative impacts, if an accident does occur can perhaps also be reduced.
It's a prudent approach and CAA it may seem have always been a bit uneasy with civilians ( even ex military instructors) operating without the public purse behind them. That said, I have no doubt that the aircraft was maintained and operated under the same strictures that apply within the military environment - funded by high net worth individuals with a passion for aircraft heritage.