[Sunbun]

I think that the FMS is only capable of three matches per set of two alliances. It can't really "create" a 4th match, so when there's a tie someone has to manually go and "replay" one of the matches that tied.

This is why Final 4 is actually "Final 1." You can see this happening around TBA when the winners of Final 3 aren't actually the regional winners.