I see nothing wrong with it....
The deep, it hungers...
By the way... did anyone else notice the sharks seem to linger around the surface maws agape and continue to try and eat you for longer than "usual" even after you've boarded?
I've noticed ages ago a shark tried to eat my scurvy sealegs by hopping out of the water once (head only, obviously)... then diving to seek greener (and likely meatier) pastures, forsaking the escaped meals.
But now.. I've noticed at least once... 2 sharks that had spawned with me and gave chase.. remained until I clamored aboard my sloop and could look back at them... Where-upon they'd remain surfaced in an effort to gobble up up for more than a few long seconds...
Just a random thought but is that yet another secondary AI alteration to sharks with HD upcoming release I wonder?