This reminds me of when Quora automatically deleted questions containing spam (instead of reverting the spammy edits for some reason), so some political actors used it to provoke the deletion of thousands of years-old inconvenient questions (with all answers) by editing the questions into something that triggered the spam deletion bot. Quora never restored the questions and answers. They did ban the editing of anything, so now the site is full of bad grammar and typos, redundant topics, and wrongly bot-tagged questions.
I haven’t looked into it yet, but my guess is that this is only for new articles, but existing ones defaced by AI can just be reverted.
How does Wikipedia continue to be such a bastion of awesome in an increasingly shitty internet? Keep on, good folks!