They had a boat with what? 3 or 4 outboards? We not talking a canoe here, we're talking a fair sized boat. I can tell you from personal experience that trying to right a canoe full of water while swimming is not an easy task. Just considering the outboards, that is an impossible feat while swimming. If the boat were whole, which it would not be if it sustained a direct hit, upside down it is useless. It is highly doubtful, they had a cell phone capable of surviving a dunking in the ocean.

The most likely reason to do a double tap is the stickiness of the circumstances. They go to rescue the survivors, they can't prove the drug running because they blew up the evidence. What if the survivors were mere fishermen? Then it becomes awkward. The military might be held responsible for paying the survivors for the craft and what ever else can be tacked on, along with criminal charges from a foreign country. No matter if the military pays it off or even if it is officially recognized. The damage would be to Trump and his administration involved through The Hague. They call it War Crimes. His immunity as president holds no water there. Easy way out, leave no survivors.

On the whole this looks just like so much misdirection we've seen time and again, telling you not to believe your lying eyes.