I think calling him "wide open" is an exaggeration. He had a defender on him with his hand up. Still probably would've had a better chance of going in than Gesell's shot though.
4 years into college career he should have some understanding of who has the hot hand and enough self-awareness to know it's not him. Would be interesting in seeing Gessel's career stats for last four minutes of of each half versus his career game stats.