By rule it is, but it's been going on and ignored since the 50's, pitchers hate when you give location, that would likely get a player plunked to send a message. Using film is on a whole other tier, brutal.
Nationals prospect Fausto Segura dies at 23 in a traffic accident in the DR, what's with these guys Ang?
https://sports.yahoo.com/nationals-prospect-fausto-segura-dies-23-193903045--mlb.html
I think so, apparently he smashed a couple monitors that Cora had set up with a bat, but he still didn't say anything, so he gets f***ed. Cora's going to be toast.