yeah, I would have rathered used our retention spot on Armia, Dvo, and Savard.
Dvorak is out for the year and wouldn't have been dealt, and even if they did want to trade Dvorak in the summer, they could without using retention. (I think it's extremely unlikely that the Canadiens will do that, though. I strongly suspect they would much prefer having a veteran centre they can use next season. If they move him, it wouldn't be until next years deadline.
I think there was zero chance they were even entertaining moving Savard, and I think it would have been mistake if they had. With the amount of young blue liners on this roster and in the pipeline, Savard is a much needed veteran role model on the blue line and in the room.
I think it's of more value to the Canadiens to have two goalies on the roster rather trying to move Armia.