Meaning Apple used to lead the world in designing human interfaces that were logical, consistent, attractive, and easily discoverable. No computer interface is truly intuitive, but the classic Mac OS came closer than anyone else. The 1987 Apple HIG handbook was the bible of the industry.
Then Jony Ive arrived, and familiar features either disappeared, or were hidden away because they were "clutter" that defiled Ive's pristine vision of an unbroken expanse of white pixels. Light gray text on white? Invisible buttons? Please spare us the dysfunctional minimalism. Didn't anyone at Apple watch AbFab's
White Box special?
Productivity became an Easter egg (or snipe) hunt, and every new OS version hid more of the reasons we bought Macs in the first place. Nowadays, the obvious buttons and widgets tend to be the ones that steer us toward the iTunes store to spend more money, not the ones we need to accomplish our daily tasks with a minimum of fuss.
Muscle memory is important: it lets us do repetitive jobs without having to think much about the mechanics. Change the process, and we make mistakes while we relearn the interface. And once we finally figure out where they hid something, it changes yet again with the next "upgrade." Or goes missing entirely--just look at iTunes 12.7.
What's next? Picking up axes so you can throw them at the dwarves standing between you and that spreadsheet you need to open? Plugh! XYZZY!
Also see
Mystery meat navigation - Wikipedia