I don't doubt it's a big possibility Zidane never makes a big deal of it, not with his "everything stays in a dressing room" attitude towards these kinds of things and clear hierarchy that must be preserved. But equally, Zidane is also aware how this will reflect on him being the 'enabler' of such attitudes and slightly taint his own image.
The most likely thing to happen is that they'll leave it and Perez-Zidane will tell Benzema (if it's him) to cool it and post something to the contrary on social media. I wonder if Vini will let himself be strongarmed into it, he actually seems like he has a fair bit of integrity as a player so if he watches the video and draws his own conclusions about that moment in the tunnel, we'll be able to tell more about the extent to which Benzema has fucked up here.
In any case, this is all the more ammo to the haters and critics. I would love if Zidane let Jović play and he capitalised on the bad press now. Huesca is a rotation game so we'll see a B team either way ahead of Inter next week, but here's hoping...