Not 100% sure. If people have created a perimeter, like what was done on the Quad, I do not believe that student reporter had the right to make contact with a person to move past them. That's asking for trouble. From what I could see, he was outside the group and they didn't like him taking pictures past them. Even though he had, as a UM student, every right to be there as they did, it was in his best interest not to force his way past.
However, many members of the group confronted him, bullied him, and repeatedly made contact with him. I find their actions disgusting. Especially the loud mouth female. If she was also an educator, like the redhead at the end, Associate Professor Click, they were doing a piss poor job in a teaching moment, imho.