What, back to like how they did MobileME?
Even AWS cannot quarantee 100% uptime. Considering how many more people are using Apple devices and services, IMO Apple is doing a decent job. Compare that to Microsoft who frequently have their a office activation server down, rendering installation of their Office 365, their own bread and butter product, impossible.
Um.... Apple/iCloud uses Aws, Google and earlier Microsoft Azure for data storage anyway, Apple just stores the encryption keys!
https://www.google.co.uk/amp/s/tech...d-platform-and-amazon-s3-for-icloud-data/amp/