I don't agree that it won't work for CFB. I do agree that it would take a massive change in the landscape, and that some (most) programs would not be in favor of it.What I like about the NFL "system" is that the criteria for making the playoffs is established in advance and you don't wind uo with a bunch of dickheads sitting around the table deciding which teams are worthy. Wouldn't work in college football.
Not sure what would have to happen for college football to develop a playoff system like pro sports has. Something cataclysmic by one of the top 5 teams I suppose. And there would have to be guaranteed monies also. The revenue stream would have to be protected.