You are missing the point here. Apple have added something which is, to anybody except a computer novice, counter-intuitive. I've seen reviews comparing this to VMS's file versioning system. Fair enough, but even VMS let you decide for yourself when to save a file.
I can and will concede that in the long term this might be the way to go.
The problem today is that Apple are asking 75%+ of their existing user base to unlearn a deeply entrenched notion - "save your file!" - but have singularly failed to understand that the fact that files do not save themselves without permission has become a working assumption and part of the way I and many other people work.
I'm not against progress (or I'd still be using my ZX81) but Apple must understand that they are making changes that fundamentally affect the way I work and my productivity. Please give me an option to turn this off.
And yes, I've already posted my feedback to Apple.