Thats correct, If someone is selling licensed transfers, then the product is intended for use. ALL sports licenses require the manufacterer and or seller to be licensed. From my experience however I'm not aware of ANY sports licenses that allows for legally licensed trasfers. All of the licenses I've seen require the final product to be approved by the Licensor and their agents, usually (CLC or the Major League Licensing group)
I was the art Director of a company some years ago that held all college licenses, NFL,NBA,MLB,NHL and a host of other retail licenses like Marvel, Peanuts, Garfield, Universal Pictures and a few others. ALL of these companies required to know what the final product was. That may have changed but I doubt it so VERIFY that the maker of the transfers is in fact licensed to sell these transfers. I have been present and seen when CLC has shown up with police at events and confiscated questionable goods. Good Luck