The point I was making that he received that training from Gai. No one else from the leaf could have taught him that on that level. so though he did earn it, Gai bestowed that power unto him. though it is not the same, that power was given even though it was earned. If someone else was his sensei and he still worked that hard, he probably would not have the same power, meaning some of it, if not all of it was given and taught by gai even if he worked for it or not. The point is thats not an original Lee Jutsu, he got it elsewhere