Bummer. Thanks for the link, though! I'll keep an eye on the issue.
In the meantime, do you know whether it would work for me to add a federated user as a moderator? Or, for their instance owner to allow them to moderate a federated community?
I'm not sure how the technical aspects work here. I know it's not a desirable solution, but a band-aid would be nice for the users from federated instances.