Sure, but why can't we have both? Sensible, usable defaults for new users, configurable views for everyone else. I'd like a version of Pages where I can turn off the toolbar, turn off the title bar, fullscreen the remaining window and focus purely on the document. That really shouldn't be difficult.
It would be extremely easy to have both. Tab to hide/show chrome and controls. The Affinity software does this, and it's intuitive and works flawlessly.
Absolutely. It's totally doable. But Apple is swinging a bit too far into the minimal aesthetic right now.