Is intuitiveness the right word? I make the same arguments about Vim, that it's one of the most logically consistent editors once you learn the basic set of primitives (not perfect of course). But I don't think anyone would call it intuitive.
> Take, for example copying. You can alt-drag a surprising number of things across many different apps and have them just work.
Why do you need to alt drag? Why can't you just drag? You can drag a lot of stuff in windows and it "just works".
> Or holding alt in menus to show additional entries.
Why does it not show all the options all the time? How are you supposed to know to press alt?
> Or holding shift or alt to resize items to preserve ratio on one or two sides.
This is pretty universal.
> Or take dragging and dropping references to the current file from the proxy icon in the window top bar. Or dragging and dropping selected text as snippets.
I have no idea what you mean, but you can drag lots of stuff in windows to different places and stuff happens.
The disk image stuff is cool I guess, but I'm guessing it's possible because Apple controls the hardware and software. I'd be pretty pissed off if some tool automagically changed my boot records.