Ty Detmer won the Heisman but didn't make a lot of noise in the pros. Sure he was in the league but he didn't play often, and when he did he didn't play especially well.
Shawn Bradley played in the pros for 12 seasons. He wasn't a superstar, but he played.
Jimmer swept the player of the year awards and will never be forgotten in BYU lore because of it. Players who win major individual awards are held in memory at a different level.