"That is not your only reason for being here, Altair." Thrawn also considered him valuable because he provided a window into the past, which was just as valuable. He also valued him for his advice and council, just as he valued it from Parck and others.

"Nonetheless, I will weigh my options once I have more information. I would prefer to keep your powers a secret from him for as long as possible. Sometimes the key to defeating an enemy is not just their lack of information, but their unawareness that they lack vital information." Though if Nuso Esva found out about Altair and what he could do, they still had the Doombringer, Eternal Fleet and Iokath, things he was also unaware of.