So for all intents and purposes if we assume the winner of Game 1 wouldn't try to win Game 2, the field and the seeds are locked - Braves #5 Mets #6, which also puts the Mets in our bracket. The only way the Mets can be #5 is if they sweep and knock the Braves out, which would put Arizona in our bracket. Ditto if the Braves sweep (they're still 5, AZ 6).
If the Mets win Game 1 really no motivation to try and get to that 5th seed which would only buy them two potential West Coast road trips. If the Braves win Game 1 all the more reason to rest knowing they are about to fly to San Diego no matter what.