I'll take serious issue with #12. There's undirected scatterbrained interfaces and that's bad sure. But there's the other extreme. Like in Google mobile search, you can't do custom date ranges... they've removed one menu item just on mobile. On SoundCloud mobile you can't delete your own uploads. On reddit mobile you can only do text posts. Or that new version of gas buddy or Google maps or in Google photos on mobile…
It's a tough balance. I guess the right way to is to have UI metaphors that minimize extra controls from scratch (i.e. if you remove 'save as' find a way to remove files as a metaphor; you can just have automatic save, undo, and 'duplicate this'.)
There's this anecdotal story about how people in the early 80s couldn't figure out that the mouse should be intentionally rolled around on the table without a demonstration but once shown it was clear.
We shouldn't have some visceral animosity against something if it takes non-zero time to learn; especially if we are talking about under 30 seconds.
Many major common things take months of time to figure out; literacy, basic arithmetic, cooking, any mode of transportation, relationships, temper, finance, and time management; infants even take a significant time to figure out sleeping.
Anyway, what we have is fine - no further simplification required.