Sure he stooped to Seluk's level and looks tough because of it, but I don't think it looks good.
Some have put a spin on it in the media that Pep is punishing Yaya for another's actions, which sounds cruel. I don't agree with that all, by the way. It's a players responsibility to let their agent know to not speak to the public without consulting them first.
I don't like our quarrels being made public, so I think Pep could have addressed the issue to Yaya personally and if he didn't apologize, then give him a one-way ticket.