I know this an old thread but I have been wondering this exact thing. Last season I was in IV.7 and won the finals so I was promoted. Fine.
The rules say "In divisions VI and lower, both playoff finalists will promote to the higher level of divisions. To keep our community fresh and lively, the next best teams in your division will promote to fill in any Bot-controlled team spots in higher leagues."
However my Finals opponent the shepparton shooters are still in IV.7 while the orlando florda magic who had the next best regular season record after me, did get promoted to DIV III (where they got smashed every week and then went bot!).
Are the rules wrong or have I got something messed up?