What did they run really well as they didn't get the ball?
I mean if they're a Dolphins fan, past experience I mean they've done consistently the last several years, hell look it up and an article from 2015 pops up.
https://www.foxsports.com/stories/nfl/why-do-the-miami-dolphins-collapse-late-in-the-season
In that game the Cowboys scored more TDs than the Dolphins, that's how bad that win was.