[PhilD]

I take this as a boost to the player who is trying hard to dominion-kill a nation - the other provinces will be easy scout pickings when you do kill him, and you can prepare your scouts beforehand.

The problem is in SP, where the AI doesn't seem to take advantage of it. In SP, when an AI dies to dominion death, the other AI with adjacent armies don't attack the now-empty provinces - at least, they don't do it systematically. As a result, you get "free" provinces if you have nearby armies or sneaking scouts (I like to have scouts everywhere, even in SP).