Even if it's not intentional, they may have some algorithms that "throw the baby out with the bathwater" as the saying goes.

We're already seeing Google's recent "extremism curation" hit a lot of youtubers that shouldn't be anywhere close to being impacted by it, and yet they still are. If Google's DeepMind/Brain AI can't properly curate this sort of stuff, I can't imagine Twitter is any better at it.

After governments keep pushing them to "deal with extremism" I wouldn't be surprised if they took overly aggressive actions to be on the "safe side." I also think they're wrong to do that, but in Google's case they are obviously concerned about more advertisers dumping them.