"Should we find Wardens in the Hunterhorns who have departed Weisshaupt Fortress, I would like to know what their intentions are. If they have not come south yet, there will be a reason."

Maybe not necessarily one they care to share with Riftwatch. Maybe not necessarily one they care to share with Ellis.

He does not say this.

"If they are working against Tevinter, we may be of use to each other. Allies."

A specific choice of word. Not recruits.