Umm yes... Here is Leon's own coach talking about this bad tendency
“I was pretty confident that Usman at some point was going to move away from the punch to that side, and Leon saw it,” Cleminson said. “If you’re going to be ducking into head kicks, these things would happen. … I’ve pulled up some video and cut some video footage of the Colby (Covington) fight, (Rafael dos Anjos) as well, and he does it numerous times. I’m like, ‘This is a pattern forming. I think you can manipulate this.’ It’s all about timing."
Wrestlers have a bad tendency in doing it
Barnett exposed it early with DC. Numerous other examples.