Not quite sure which channels I should reach out via but I've put my email on the page so they can contact me.
Based on timings, it seems that Wikipedia wasn't really at risk from the domain being bought as everything was resolved before NS records could propagate. I got 1 hit from the URL which would've loaded up the script and nothing since.
Its misinformation that the malicious script loaded that domain. The malicious script did have a url with that domain in it, but it wouldnt load javascript from it (possibly due to a programming mistake/misunderstanding by the author, its kind of unclear what the original intent was)