Yea, don't give them sudden uncertainty at the end of the process. Provide uncertainty the whole time, for consistency. Design Thinking!

Hah, sure seems weird, but for example tell a kid something will take a given amount of time, the kid will constantly ask if its ready ignoring the original estimate, and will get really anxious if you tell him it's taking way more time than expected. Then you will learn the easier way is to tell the kid "leave this to me, don't bug me, go play with your toys and I'll tell you when it's ready". That's the kind of psychology Apple is using here, from my perspective.

So, Apple views clients as petulant children?.

Also, I don't treat my kid that way.

That's probably how mass-market clients are seen for some companies... are they succesful? The answer points to a trend that should scare us. As a parent I also want my kids to be smarter than this.