I was thinking the same thing.
Didn’t someone try this a few years ago . . it was called the XFL?
I’m not sure who all these people are who want to see bad weather, all rushing 3-0 football games. I imagine there’s even less who would want to sit in a stadium in Duluth, Minnesota for three hours in the middle of January.
There’s a reason the football rulebook is littered with rules to encourage more offense. Also, while yes, there is a lot of leftover undrafted talent, most of the players that want to play professional football play in the CFL and Arena football, the rest have just moved on to take real life jobs that pay real money.
In addition, there is a shortage of good quarterbacks as it is in the NFL, so there wont be any good quarterbacks, and unless you are going to outlaw the forward pass, these games will be nothing but missed pass after missed pass. There’s a lot of minor league sports that get away with being less than “high” level. You can disguise bad baseball, bad hockey, and even bad basketball. But there’s nothing more brutal than a slipshod football game.
That said, to build on your thought, I was always curious what football looked like in 1905, and 1925. I think it would be fun to have an exhibition under those rules (with todays padding, of course). I always wanted to see the flying wedge, in real time, not in those wind up black and white films.
I think the rugby league makes more sense, its really a cool sport to watch, the problem is rugby is so far off the radar in this country that most college clubs are privately funded.