Is This a Thing That a Lot of Baseball Players Must Practise?

A commercial with petolonzo for the company car shield that came out in late april. The phrase even a change up seems strange, as change ups are pretty common pitches. Is this another case of a baseball player having lines written for them and not bothering to give any input? We got one from matthew. Let's take the petolonzo question. Tha youd earlier.