Miner really did look great in college but it was all a mirage. His unheralded backcourt running mate (Robert Pack) had a much more successful NBA career.
Kenny was an incredible high school and college player so I'm not sure what you mean here? The team itself didn't have much success, losing to Georgetown in their only Final 4 during his stay, but Kenny was SEC Player of the year twice (all SEC team all 4 years) and was a 1st team All American his senior season.
He never lived up to his David Thompson comparison but, unlike David, Kenny struggled with knee problems throughout his pro career. Not that I'm suggesting he would have been in David's class had he stayed healthy but I think he'd be remembered as an NBA star had his knees held up.