Rooki has never been removed from the position or paused activity. You're probably thinking of the !vegan mods first demoted, then reinstated by Rooki after my post asking for his removal as a moderator.
By the way, instance moderator MrKaplan said that it would be considered animal abuse if vegan cat food were inherently unhealthy, so by that logic, the overfed cat posts would also need to be removed, but I don't see that happening. The Lemmy.World mods are very selective about applying and interpreting the rules.
It's a confusing post. Rooki justified the actions by citing "missinformation", though the ToS had no such rule at the time. I think they're trying to rewrite history now by bringing up animal abuse, but MrKaplan's explanation in the comments is that if there were no healthy implementation of vegan cat food, then they treat it as animal abuse. From having looked at the research, even Rooki weakly admitted that "it's not unhealthy", hence the reversal.