I don't think he's being criticized for grounding the ship. I think it's because he left. I heard the recordings, with translation, earlier today. It pretty much went the way Charley said above. The captain also said it was getting dark and he wanted to go home. That was why he didn't want to go back to the ship and check for passengers.

I don't know exactly how much trouble he's in, but I bet he doesn't captain any more ships.