A similar holster was built in the US in the 1980s when people thought them thar semi-autos was unsafe to carry with a round in the chamber. It was a flop, as it should have been.
A bud of mine who is a .mil guy in Spain sent me that video when it first came out, not to sound completely sexist, but his first hand knowledge of this promotional video was that the gal in question was not chosen for her skill at arms.