Huge agree. The Patrol Boats lack of transport capacity really hurts the map. Supposedly there is some sort of spawn-beacon mechanic with it? But it is completely obtuse or doesn't function at all, as I have been unable to spawn on a full Patrol Boat a single time despite trying dozens of times today regardless of whether the boat was near the shore, open ocean, whatever. Even if there is a mechanic like that, I'm not sure how they think we're supposed to know about it or how to use it, and I'm not sure why they think the average BF player will have the intelligence to bring the boat to where it can drop infantry.
The jetskis spawning from the boat in BF4 was buggy, but when it worked it allowed you to use the boat as a spawn beacon even when the pilot was positioned poorly. Also, being left behind at spawn is a huge issue on this map, like you said, and many maps honestly. We need a way to redeploy to the spawn screen without losing a ticket/getting a death when the match starts, been an issue since launch.
Add on that the boats themselves are super squishy and the mortar seems super finicky...the transport chopper feels infinitely more threatening on this map than the Patrol Boats. You could remove the boats from this map and it would be roughly the same. They transport more people, too.
Held back too much on the naval side of the naval map.