They just needed to expand "At this time, this appears to be an isolated incident." into "We are still investigating, however at this time, this appears to be an isolated incident". No additional details required.

And yes, it looks like Ars is still investigating (bluesky post by one of the authors of the retracted article) https://bsky.app/profile/kyleor.land/post/3mewdlloe7s2j