Perhaps, but even if it's evident that the boat itself is engaged in drug smuggling, that doesn't mean that the people on the boat deserve summary execution. They could be being coerced for instance.

Also, IIRC the first strike killed 11 people. Why would you need, or want, 11 people to crew a fast boat that's supposed to be clandestine. Is it possible that they were smuggling people instead of or in addition to drugs? In which case, maybe we just killed some migrants who wanted to get out of Venezuela.