Isn't it a little OP that a Reaper 5 can sail through as many portals as they like, keeping their emissary status (Grade 5), and if there ain't no emissaries, they vote the Tall Tale checkpoint and sail back into the portal?
What if you downgrade the flag from 5 to 4,90? Or something just short of 5, so that you don't get an instant UAV when loading into the new server, just to leave it 10 seconds later because there was no emissaries.
You would only have to pick up a few pieces of treasure along the way to get back to Grade 5, but it will give emissaries and crews on that current server time to react to a Reaper 5 appearing out of nowhere.
Currently, there is no cooldown or no downside to portal hopping (compared to lowering flag and server hop the old way), other than loading through the portal, which everyone gladly does considered they keep their emissary status and all the supplies in the world.