Selling wrestling as the feeder system for the UFC doesn’t detract from it also being the feeder system for freestyle wrestling. I’m not saying wrestling has “an obligation” to MMA, but a lot of people are interested in MMA and I don’t have the data off the top of my head but IMO Jiu-Jitsu (which also doesn’t involve being punched) seems to be capitalizing more on it’s popularity than wrestling.
But like I said, college wrestling already is the minor leagues of freestyle wrestling. If your argument is you think we’d see more than maybe a handful more people “making wrestling their full-time job” if college was freestyle, I disagree. College folkstyle seems to do a pretty good job in preparing guys for freestyle success.