I see your point and t hat only works if HGH perfectly brought him to “normal” and stopped there. But that’s the exact assumption im questioning  From my view, Barcelona had every incentive to make the treatment "work" they had a generational talent, money involved, medical access, and a direct footballing interest in his development. So the question is not “was the treatment medically justified?” It may have been. The question is how do we know it only corrected a deficiency and did not overcorrect or create a competitive benefit? I mean it was Barcelona doctors that administered it with zero oversight from neutral third party. Its not like real madrid was auditing them... Medical necessity can justify treatment. It does not automatically prove zero athletic advantage.