August 2016 is not that old, it clearly applies to this situation (“adversarial clouds”), and also the salient points are documented in the iOS security white paper which is updated annually: https://www.apple.com/business/docs/iOS_Security_Guide.pdf
And why should we assume that every cloud is the same? The china cloud might be different in tiny but important ways.
Or all the clouds might have 'evolved' a few minutes ago to comort with some new apple policy. This is all about trusting a corporation. I still prefer to handle my own encryption, keeping my keys how and where i like.
