Not sure if you know the answer to this, but I don't, so I'm going to ask. Also, I'm not attempting to be pissy with you, I'm genuinely curious. This is also not NBA specific, but sports leagues in general.
Are players personally buying tests?
Are teams buying tests and administering them to players?
Are leagues buying tests and distributing them to teams?
I think who's doing the purchasing changes the perspective, at least in my opinion.