It certainly puts me off! Not that I'm much of a boat person anyway.
I do wonder if the nightwatch had been awake (assuming that's an issue) if he might have been able to access firefighting equipment early and extinguish the fire. They couldn't access it by the time they were all aware of the fire because it was engulfed/inaccessible. If he'd been actively walking the boat as the nightwatch is apparently meant to do he might have seen/heard/smelt the fire when it was still in its early and quite extinguishable phases. Maybe. Of course, that's one of the things that will be determined in the investigation.
A roving night watch doesn't constantly walk the boat -- especially a small boat like this one. He or she would have checked things on a schedule, which sounds like was done given the short time between the last check of the galley area and the fire.