Trevor slid late and it made it difficult to pull up in time, however both of the defender’s arms deliberately deliver a blow directly to the head. That was avoidable. That’s the dirty part.
Edit: and this isn’t comparable to the Saunders play.
Yup, he might have not had the time to avoid the contact but I think he did have time not to try and take his head off.....sometimes plays that look dirty at first glance are not, I don't think this is one of those times....