That has been McCarthy’s MO practically her entire career. If taste and decorum are important to him then he never should have agreed to appear on her show.
He’s still a young man and not as worldly wise as many people in the entertainment industry should be. Give him credit for having some standards. I find that absolutely refreshing in a day and age when the only standards most people in entertainment have is what it will do to make them money and/or promote their career.