As promised, I found Melvin Council's shooting percentage at the rim. It was 53.8, which is not elite but not terrible either.
https://hoop-explorer.com/PlayerCareer?ncaaId=5177301&tablePreset=ClassicPer50Detailed&
It is important to remember it would have probably been higher if Council were not the guy we always asked to try to score in late shotclock situations. As promised, I found a source corroborating this as well: