combinations of wins or losses that might happen this weekend, the fact that there are two paths to that outcome make it one of the more likely outcomes.
If it comes to that, what would MLB do if the Mets choose to forfeit the Monday games? Could they stop the Mets from doing so? It would put the Braves in and kick the D'backs out. It would also move the Braves up to the 5 seed to face SD and send the Mets to Milwaukee as the 6 seed.
But if you're the Mets in that scenario, why would you play the games? Travel to Milwaukee is nowhere near as bad as travel to SD, and SD is currently playing the best baseball in the NL. You give yourself that day to travel, and you're not wasting any of your pitchers, not even the scrub ones that who knows if you might need.