User blog comment:BertH/Introducing WAM/@comment-876022-20130426092559/@comment-303594-20130426102143

Yeah, that's a problem with how they're getting the admins. The lookup function will return the admins up to that limit, so they only get back the first admins from the database reply.

Although admins isn't the best metric - it's normally a good indication on who is influential on the wiki. Would be good if they changed the list to sort by activity though, I don't think it'd be too much more expensive for most wikis.