Does Fram's ban on Wikipedia seem similar to recent events?
No, it very much doesn't.
According to the BuzzFeed article referenced in the question, Fram was a highly controversial editor prior to his ban. To the point where one former member of the English Wikipedia's Arbitration Committee, a body of only 15 selected from over a thousand administrators ("moderators" in the Stack Exchange world), characterized Fram as an archetypal "toxic" user that the community's own laissez-faire attitude gave undue free rein.
Yes, banning Fram was clearly an overreach by the Wikimedia Foundation. They made an executive decision in a situation they had no business involving themselves in. In that restricted sense the situation is similar. It was a decision they should have — very much so, and that's where the outrage stems from — entrusted to the community, i.e., that very same arbitration committee.
But the similarities end there: at the terrible decision made by the Foundation and its disregard of the community. The situation itself is very different: Monica was not, and is not, a "problem contributor". She's not a stand-in for "toxicity" on the site. She's an arbitrarily selected victim for a hypocritical "display of virtue" — by a person who, unfortunately, wields that kind of power. Monica is not, like Fram, a contributor whose behavior has long been heavily criticized by their peers.