Precisely. The NCAA hands out phony medical redshirts like candy to true freshman who play in the first one or two games and don't show up after that, that's exactly my point. Whether it's a normal redshirt or medical redshirt makes no difference: it's easy for true freshman to play early in the year and then get a redshirt.
You appear to be the only one who believes what you say is true, and you have sort of backed yourself into a corner logically so you are going to have to actually show us some evidence for us to believe the practice exists. You cannot prove that this is within the rules because it is not. So, to prove what you say is true, you essentially have to show that massive amounts of kids play, then redshirt, and you probably need to show kids who have the types of injuries that are wishy washy (sprained whatever, not torn acl, fractured, etc.). Pointing out one kid who played early, then received a medical redshirt from the NCAA is exactly nothing, other than saying that you do not know what the injury was. I am not saying that this kid was or was not injured because I have no idea, but you're simply saying stuff that a crowd of people does not believe and your example is similar to me saying Joe Burns magically received a medical redshirt after mysteriously getting injured in the florida state game, just because I did not watch the game or talk with the doctors or read the newspapers or watch his surgery.
I think if you show everyone evidence, then we will say something like (1) wow, can't believe schools do that, (2) it's still against the rules, (3) glad GT does not do that.