When you are doing a Shrine, you have to let your ship alone.
And most of the time, your ship will get sunk without you knowing it.
It creates a loose/loose situation where the attacket have nothing to gain sinking the ship and the defender lost his ressources and need to travel back to the shrine.
But how to avoid this lack of interaction ?
My Idea would be to have the loot sirens pulsing red with a specific sound when your ship is being under attack.
This way, you could go back to your ship trying to defend it and have a real PvP battle, not just cannons VS unanimated ship.