No doubt Rogers would love to see an outdoor game in the baseball stadium they own. That's win-win squared. For maximum value, they'd have to have the Habs in as opponents.
After that, people will learn that sitting three or four or five, even ten times further away from the action as they would at the ACC is nothing to get excited about and it would be a tougher sell. They'd also want to stage outdoor games against a number of other worthy rivals like Buffalo, Detroit, Ottawa.
So, by shifting subsequent games to BMO Field, they'll be able to market a fresher, more intimate experience because fans would only be two or three or four times as far away. They'd also have the CNE grounds to expand game-related events to and by the time the second or later games are arranged, the roof is on at BMO and all the logistics there are well in hand.