The term "Coast Guard Approved" ranks up there in the ranks of marketing jargon with "Clinically Proven" and "but wait, if you order now". It means nothing. What does count is the angle of visibility and the distance which with which it can be seen. The angle of visibility is easy enough to check, the visibility distance, not so much. I would seriously doubt that there are very many white lights that can be seen from two miles away.
IMHO you are probably least likely to be stopped and ticketed for factory installed lights with your defense being, "That's how it came from the factory". The offense most likely to get you cited would be a burned out bulb.
Looking blingy on the water is more important to many than actually catching fish, but why would you want to take a chance and ruin a perfectly good day of fishing?
2015 Seaark 1872 MV CC Etec-90
Two Helix 12 CHIRP SI's, , MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
Bitter Gun Owner