Earlier quoted context omitted.
(not the person you replied to) I think its almost the inverse: if there were 1m comments on Facebook/Twitter about it, they're among 1trn other comments on Facebook/twitter. If there 100k comments on parler, that's 10 times less. But there are only 100k (edit: 250k) comments on parler total and they're often about violently defending trumps "victory".
But the point is where was most of the planning for violence done? I realize you're not being literal about all the comments centered around violence on Parler. Or maybe you are? Are you saying most of the comments there are violent or a good number of them?
There are two questions here - impact and optics. You are asking the former, but it’s likely the latter that caused trouble.
A smaller platform with larger percentage of offensive messages will look worse than a larger platform with a small percentage even if the total impact of the large platform is 100 time more.