This is not as absurd as it sounds. Who has ever outworked Couture in the clinch? A high level Greco Roman clinch > MT clinch. You throw those knees against a greco guy, you're on your back before you can load up the second one, they're masters of misdirection in the clinch.
The MT clinch is devastating against traditional boxers and grapplers, especially when you have a height advantage, but not so against a greco guy. Especially one that has a height advantage on you.
I wish Jones would stop talking himself up though, makes me nervous.