[Joe Ross]

This type of situation is fairly rare, but it does bring up an interesting tangent:

Often times I hear people complain that the top seeds can pick each other, often with the complaint that "it's not fair".

Consider how often a top seeded team picks another seeded team, it usually happens several times a regional. If top seeds were not allowed to pick other seeded teams, there would be several teams at every regional that would be faced with the choice of lose their last match and ally with a top team, or win and go it on their own.

That's a big reason why I like the rules as they are now.