I know that on the gator freighter our surface guys delighted in immediately sinking any captured or derelict vessels. Probably because they were bored and hey 25mm.
Cubans several hundred miles from anything wanting gas and maps? Sink it. Free Ride back to Fidel land, gee thanks.
Somali pirate skiff? Sink it, well maybe. Okay, so you brought it in the well deck to gather Intel. Did Intel indicate there were live RPGs and giant cockroaches? Yeah, how about not bring that in the house. Also of note, a fiberglass and foam little boat will embarrass the world's finest navy, they don't sink easily.