At the end of the 2020 season I took a look at how the various rule changes the league implemented for the year impacted the Rockies. While almost none of the new rules helped the Rockies, the fact that they only played one double-header all year meant it was mostly irrelevant (although they did lose both games to the Diamondbacks giving up 15 runs across two 7-inning games.)
This year we’ve got a larger sample size, but the Rockies are going to be happy that Rob Manfred is getting rid of the 7-inning double header after this season.