You don't understand the kind of training he's referring to. More importantly, hands-on fighting experience accounts for vastly better training than repeating the same moves 1000x.
Being around the world and taking on countless other fighters is the kind of training and experience an MMA fighter has. He has faced fighters who have all sorts of backgrounds and he has developed speed on top of brutal power and figured out ways to counter most styles including wrestlers, kick-boxers, martial artists, you name it.
Meanwhile the kind of training Shaolin focuses on is primarly revolves around mental concentration, flexibility and to some extent speed. This translates to being able to do survive extreme conditions, go without food for long periods of time and hone their bodies to work very efficiently.
Compared to an elite MMA fighter what is a Shaolin Monk's actual fighting experience? Zero. Zip. They haven't even seen anyone outside their temple/region. An elite UFC fighter is quite literally prepared for any situation and any opponent, because he has literally faced and beaten most of them. A Shaolin monk is prepared to fight other shaolin monks. That is the extent of the monk's training and experience.
You call that experience? I sure as hell don't. Shadow practice, meditation and starvation don't equip you with the fighting skills required to take down an MMA champion.