Earlier quoted context omitted.
I think at this point every single unpopular or questionable action made by an institution is going to go with a "it's to prevent hate/discrimination" justification. It's an easy way to get a credulous mob on your side; you can always nutpick random examples; and if someone argues against it they just prove they're one of the racists/whatever.
I mean your comment is based on the assumption that hate speech doesn't happen online. in my experience, places like discord and a bunch of subreddits are sweltering with it. it is not surprising at all that something that blew up as fast as this had trouble moderating hate speech out and became a host for it.
How so? "Institutions will publicly blame hate speech as an excuse to do things they wanted to do otherwise" in no way requires an assumption that "hate speech doesn't exist on the internet."