The Vizier position needs to communicate to lead effectively.

Nations without leadership tend to lose players faster.

People join for the game, but stay for the team. Community is not a nice addition to the game, it is a critical component.

The game limits the length of each sent message, so that it is not possible to give a detailed description of how something works without sending 2-3 messages.
The game counts each location sent as a message.
Things like showing the path the team will take to the nation's goal, might take half a dozen location posts.

Linking a town, and stating that it is the next target counts as 2 messages sent.
Linking a location without any explanation is ambiguous.

Having to wait 10s between messages while actively directing a conflict against another nation is unacceptable when a battle lasts 10s, and thousands of troops are lost.
Time matters, and penalizing a vizier for good leadership is unacceptable.

The servers where no one speaks for over an hour at a time, and then it is only an emote reaction, feel dead, and without community.
Certainly without leadership.