Whether they were hate speech or not, is something for a judge to decide - not a random idiot on the internet, you have no authority to make that call.
The context certainly would not be a reason to remove them. Calling black people 'monkeys' has been a rallying cry of NAZIs for decades - so how you get to it NOT being a  textbook example of hate speech I honestly cannot say - but luckily, it's not for either of us to decide.

As it happens, Sparrow was never charged with, nor convicted of, nor fined for hate speech anyway. She was charged with Crimen Injuria, convicted of it and given a fine.
That's a completely different law, with different standards. It has exactly zero relevance whatsoever to this case which was a hate speech ruling - not the same law, not judged over by the same court (magistrate not equality court), and not in anything remotely like the same context (public social media versus an art gallery).