Although plausible, and part of it, it's not just that. The second part is much more important (people unwilling to adapt), but one should think about why.
- How sudden & drastic was the change?
- How well trained were people?
- How much support did they get when something went wrong?
That's the kind of stuff where companies & public administrations usually suck, "change management".
Also people who left Twitter or never were there. Fostering radicalization while censoring legit links to other much more peaceful communities is going to increase social conflicts, and this usually leads to real violence sooner or later.