This is explainable using the current setup with the Flash Wolves and Koo Tigers. They're both 4-2. However, in their two games against each other, Flash Wolves won both matches; therefore, Flash Wolves have the higher placement; and thus, the first seed.
If the teams are actually tied, there will be an extra match added, and the winner of that gets the higher placement.
If three teams were to tie, they would play a trio of games with one another - and if one team wins both games, they get the priority. If not... I think they have to loop again and again and again. I don't know if there's a limiter on that, but that's what was mentioned in the past.
If four teams were to tie (all of them go 3-3)... well, then, hell if I know.