Arteta is a little cunt, has been for a while, despite being slightly more media-friendly this season as his team have been successful.
He's playing a really cynical media game with this crap. Invented years ago by other, better managers. Complain and rant to the media, media analyzes and backs his spurious shite, next time there's a borderline decision, the pressure is on the officials to give it. Just watch them get a contentious VAR and/or pen decision in the next game, nailed on.