When authorities say stop you should stop the boat and do not accelerate the speed. Why would you approach a military ship with such speed? To ask for Paratha or Tea? To go picture taking with the ship?

The US Navy is wary of the surroundings, Bahrain accuses Iran of tension to it's territory. As an ally they must check all things specially suspicious. A boat can be used to smuggle things to cause conflict.

Security measures must be taken. Unfortunately it caused someone's life.