I know that It Has Been Decided that he was joking and that is not a thing because everyone knows the All Star Game counts and if a guy did groove a pitch, which Wainwright did not, that would be bad for baseball.
Since we all enjoy a good joke, here is some video of Wainwright and you can have a good chuckle.
It’s a good thing he didn’t groove a pitch as all the national media is telling me. That would be bad and Bud would have to do something as he always does when people are messing with the very foundations of the sport, which Wainwright was not since he was joking.