I suspect that the 'characters' are a good idea; don't forget that recruitment is an important challenge for all the forces, and the "young person who didn't get the best start in life joining the Royal Navy and making something of themselves" narrative is exactly in line with the RN's TV advertising. If young people with potential watch the documentary, see people like themselves, and sign up, it's a win. Sure, I'd prefer to see non-stop footage from the ops room, flight deck and onboard the aircraft, but it's not aimed at old has-beens like me.