That actually is surprising though. The police always favors the left over the right in situations like this, regardless if the left is ACAB
Edit:
In terms of this getting reported in the press:
Years ago, Bolsenaro was stabbed during his presidential campaign and there was a chance he was going to die. The way the BBC reported on it was "The left has condemned the stabbing and there is fear of right-wing retaliation." So even if your presidential candidate gets stabbed in the street, the media will find a way to spin it to make the left look like the good guys and the right look like the ones causing violence. (The retaliation never happened btw)