The video is an old one. This was before WL790 went to Midland.
bureaucratic issues were the ones involving the CAA and the fatigue life issue – meaning a return to the UK would have seen WL790 grounded unless replacement spars and other structure was done.
WL790 was kept at Midland with the CAF and borrowed hangar space a couple of times. She was retired to Pima Air Museum at the end of 2007, which to date is the last flight by a taildragger Shackleton. 1722 in South Africa did a couple of flights in 2008 before being grounded.
Currently there are no flying Shackletons anywhere in the world. 🙁