I recall back when Lopez was hotly recruited a local CHSAA coach told me that he didn't think Lopez was the top player in the country. He gave a detailed assessment, and turned out to be right.
I kind of think that Lopez suffered from being so athletically gifted, heads and tails over his competition in HS, and to a lesser extent at SJU that parts of his game were deficient, and never matched his physical ability - much like Pearl Washington, who didn't have a jump shot and didn't need one till he got to the pros.
That's no knock on Felipe, who still was good enough to play 5 NBA years and likely would have had at least a 10 year career, was improving, and could score at the NBA level. Not bad at all, but of course, not the next Michael Jordan. With that as a standard, not many NBA'ers would even come close.