[rndgermandude]

My guess is that when such high profile cancellations happen, it's more of a matter of perceived zugzwang.

Some platform does a high profile ban, and then the PR inboxes of the other platforms are set ablaze with journalists asking for comment on how your particular platform wants to handle that person - high profile bans make nice clickbait articles after all - and the twitters and reddits and youtubers and so on of this world talk about what those other platforms are doing/are not doing/should be doing. At this point the other platforms have to do something, either issue a ban as well, or issue some kind of statement why at this time they won't be issuing a ban. Usually the option to just issue a ban as well is a lot easier and PR-wise "safe" than trying to come up with a "defensive" statement of why such a ban is not (yet) appropriate.