I don't think 21-8 would be enough to get in.
And do you seriously think they can go on a run like that? They lost their closer. Duran is gone (who was a big part of the offense before) and the bullpen is gassed.
I like your optimistic but it's quite a long shot.
They have a 6.9 percent to make the playoffs according to fangraphs. One of Seattle, Houston and Texas would have to go on a free fall PLUS Toronto as well.