There are 50+ games this Saturday alone. The degenerate gamblers you're referring to are covered. They need something Tuesdays and Wednesdays this time of year; enter MACtion, which has become a beloved brand for that group of people. Pat McAfee, Barstool, etc. all wore MACtion shirts last week.
Friday nights feature ACC, Big Ten, American, and CUSA games already. It's also high school football night, so I don't know how shifting MAC games to Friday nights solves any attendance problems. The MAC is already stupid enough for having their conference basketball games on Tuesday nights (boy's high school basketball game nights in Ohio if I'm not mistaken).
The fact remains: unless the MAC wins more and becomes a powerhouse brand the media companies can't ignore OR the MAC gets creative with a less mainstream outlet, Tuesday/Wednesday night MACtion is as good as it's going to get.