Probably because this TFC-Colorado matchup is the only one that qualifies Also, TV rights were probably sold as midweek games.
The Rapids are my favorite team in Denver, but there's no way I'd go to a game that cold. That's a young fan's game. 8 pm is insane.
I got an email saying I have my season ticket seats for the game, I assume all 2018 STH'ers do. How many will use it, though. It's going to be a tough sell in our household unless the warm weather returns (50-60 and sunny during the day). Even then, from 8-10PM on a "school" night, it will be cold.