I'm not sure if that statement is more informative about how much sex HE is getting, or how much sex YOU are getting. 😉
For me, that level of activity is a positive thing: He's so experienced and talented (meaning he has seen it all and done it all) that he'll be able to pull off what could be awkward and mediocre sex with me with great flair and elan, just like a true pro and be responsive to his partner!
As far as safer sex, always assume every provider has twice if not three times as much sex as Cain Marko, and do what you have to do for that condition on your own personal safer-sex comfort scale. Even if a provider says they don't have "that much sex", you need to assume they are either a.) gentlemen and just don't tell, b.) admirably modest, c.) simply embarrassed by their own sexual behavior, or d.) outright lying to tell you what you want to hear, and you need to act in a way that is true to your own personal decisions about safer sex.
Good luck and have fun!