I'm not suggesting Leon has some god tier resume.
His wins over Usman (x2), Colby, Tumenov and Luque are better than anything Colby has done though. Leon has actually beaten his contemporaries.
Lets not pretend Tumenov is some world beater. He’s so one dimensional that even Leon could submit him.
You just made a post taking Colby down, so hard to claim he’s a good win now.
So really Leon only has Usman (also over the hill) and Luque (six years ago).