I don't think that courts or the police are faultless at all, and in the instances we know of miscarriages of justice there's normally some supporting evidence to suggest that there was a miscarriage rather than just an opinion on the matter.
What we have here is a video of a woman forcing someone else off the pavement and an argument essentially about whether she should have been allowed to do that.
In my mind there's no question that what she did was wrong, the status of the path had nothing to do with anything and the video is damning. I don't see where there's been the opportunity for miscarriage. The police didn't fit her up and she had a trial with an apparently good defender.
I do have some sympathy for anyone that ends up in prison and would prefer, obviously, if everyone was alive and no one was in jail, but that's not the situation we have.