Fitter2,
"Piece of Cake" was an ITV drama series, based on the novel by Derek Robinson and recieved the same criticism as the source material for daring to portray the RAF as anything less than an organisation of clean living, paragons of morality. I still think "Moggy Catermole" when I see Neil Dudgeon in anything!
Warship is one of those Fly on the wall documentaries which will sometimes show the services in a less than flattering light, similar to the other C5 documentary series on Kandahar that aired earlier this year.
It may not be the whole picture, but it is certainly part of it.