The problem with the one hour rule is not the spies. It is switching countries to find a fight that makes for low risk, easy kills. Side switchers are rarely interested in winning a map. There are those that switch to help defend bases but they are a minority.
I think a lot of the bish numbers comes from player just interested on being on the winning side. Odd though, it has to be the most boring play in the game. Often you will see giant red dar bars across the maps and no greens. They are just hovering over their base waiting on a stray green or sweeping the area for rare GVs. I just as soon the bish and knits keep those players.