I guarantee it is. So many of the guys who dominate in HS ball are athletic guys who matured early - the so-called early bloomer. Put them in college with other guys as big and talented as they are and watch them struggle. It happens all the time. Coach Dodd talked about missing on their evaluation of multiple players yet keeping them on until they graduated. Do we know that this is why we left the SEC? Dodd wanted unlimited scholies to be able to keep these guys in the program, but the SEC said "no."
Take me for example: I was just under 6'2" and 210 lbs. as a 9th grader. My coaches were all over me. "College prospect" one of them said. I burned out on football and fell in love with ice hockey. Football coaches were not happy. However, I didn't grow a full inch (in height) after that year. Coaches posted a state top 10 finish w/o me. I graduated HS at 6'2" 205. The coaches never really missed me after all. I was an early bloomer. Had I continued to grow, like my counterpart on the other end of the DL did, to 6'3" 225 lbs. then I could have maybe played college ball like he did. I didn't want it, but he did. I didn't have the support system that he did. Mostly, I just didn't have the genes that he did. Happens all the time.