Strange that they don't seem to have any status page that's not only for "Meta business products" - some page with the status of FB, Messenger, WhatsApp, and Instagram would be nice.
I find the paper a bit confusing in some part, Hive in itself is a cluster embedding clusters.
More than one time the paper simply mention cluster/node without explicitly which cluster they are talking about, maybe I didn't properly read it but I find it hard to understand