I think you are not entitled to criticise these men and woman, unless you have yourself been subjected to psychological stress and manipulation. I admit given a choice as they were "If we admitted we had strayed, we would be on a plane back to the UK soon. If we didn't we faced up to seven years in prison". I would say “where do I sign”.
What I do condemn them for is their subsequent behaviour and particularly the news conference. They made them selves look like snivelling cowards - a couple of nights in a cell and they would confess to anything. They should have made a statement that they were pleased to be home, thank those who had worked for their release - end of story.
Clearly the Royal Navy has come out badly from the whole affair. Brought into question is whether the HMS Cornwall is the right vessel to patrol the Gulf? Particularly as its deep draft prevents it from going into shallow waters. How were the Iranian boats able to approach the Navy boats undetected? Why was there no air cover provided by the Lynx helicopter? What is not in question is the ill preparedness of the crew - you would think they were going out for a pleasant row on a boating lake on a sunny afternoon. They were as well prepared as Freddie Flintoff was in his pedalo.
One final question who is Chief Petty Officer Gavin Cavendish?