I come from Royal Navy heritage and find the way the RN are portrayed quite offensive. The story is utterly implausible and full of real life inaccuracies, but put all that aside and remember that this is a TV drama and not real life and it is actually a gripping show. I could write loads on the flaws (you never, ever call a Coxwain or Petty Officer 'Sir' for example), and I agree with the comments about BBC wokeness, but the actors are good, so I have no issues with their selection. So suspend your disbelief, sit back and enjoy a decent British drama.....