Wrestlers have been calling matches in the ring forever. Many consider it being an example of knowing how to truly 'work' because sometimes the crowd doesn't react to what you're doing and you might need to change it up to get them emotionally invested in another way. Ric Flair even said Randy Savage could never be called a 'great worker' in his eyes because Savage didn't like calling his matches in the ring and preferred to lay everything out beforehand, which I think is an unfair critique on Flair's part but so much shit comes out of his mouth, who cares.
I have no issue with it, so long as it's not obvious. I remember Orton yelling "schoolboy!" right as he charged towards Triple H at No Mercy 2007 and then when he missed and hit the ring post, he got schoolboy-ed (for the win, I think.) Sometimes, it's unavoidable. At Over The Limit 2010, Orton hurt his arm, and you can tell Edge was using his long hair covering his face to tell Orton to do a double count out since he needed medical attention right away.