Communication is one of the most important factors, and in this game even more. I don't understand why there is still no in-game alliance text chat. There should be an exclusive chat for alliances and in-game communication.
This could be quite simple to implement and is something very necessary in the game.
It is as simple as putting a key that activates either the normal chat or the alliance chat, and you can communicate with them all over the map, not locally.
Many games have this element and it is very important if you want to have a good communication. Right now the alliances if you are not with them in discord you can't organize well to attack an enemy, or whatever you want to do with them.
Thanks for reading and I hope this comes to Sea Of Thieves in the future.
