I agree that the Owners / Managers should be held accountable, not the poor Master.

It could also be quite possible that the Safe Manning Document might have a total of say 6 crew, in which case they are over and above the SMD by one warm body, which will leave the Owners feeling very virtuous - and this is Norwegian flagged, ie not a dodgy flag of convenience.
St Vincent would probably just want a Master, Mate, Engineer and AB, and get them all to take turns doing the cooking and washing up......