I can see somebody bringing up "former wrestler" or "former COLLEGE WRESTLER". First, a guy could've wrestled in elementary school then quit the sport and started playing bball in 6th grade, maybe. I knew a bunch of guys who did that, but could you really even call them "former wrestlers" in an MMA respect if they haven't wrestled since 5th grade? Probably not.
More likely the distinction is that of FS, Folk, or Greco. A "college wrestler" narrows it to only folk, and folk is considered better than Greco or FS in MMA because folk has a lot more of the "control" element than Greco or FS.