Thanks! Howard is such a legend 
This is particularly chilling…
where it reveals that “CloudKit can enforce throttles when it deems necessary on any app or service that uses the CloudKit framework, CloudKit Web Services, CloudKit JS, NSPersistentCloudKitContainer, and NSUbiquitousKeyValueStore.”
Key points I see in this quote…
can: May not but is certainly capable. I wouldn’t bet on maybe not.
when it deems necessary: i.e., outside our control or desires.
any app or service: again, discretion is absolutely App’s.
To anyone reading this, this is again not us ‘passing the buck’ or finger-pointing. It clearly shows how much of the sync situation with CloudKit is not under our control. Reread that quote (and the whole article is worth reading) and let it sink in.