It's amazing how difficult it is for UI designers to make hard decisions. By this I mean the decision to leave stuff out. To choose that less is more. To remove functionality out of a product. To throw stuff away that is not really needed.
Instead, many designers tend to see their work as how to package that additional feature somehow into the product. It's as if cleaning your room always has to consist of rearranging stuff, never chucking away those old pair of jeans, or the book that someone gave to you for your birthday and you never had time to read. Many designers marvel at their ingenuity of somehow managing to keep everything in the room, just in case it's needed. And the room contains more and more stuff in it.
But decisions must be made. And things need to be thrown away. So that users entering a room find stuff easily, and everything there is wonderful. And they can go about doing their things in an enjoyable way. But it's not easy making those decisions.
Why can't there be more UI designers with that discipline? A deep belief that sometimes, less is more.
( more thoughts on less is more: Mies van der Rohe, who coined "less is more", a minimalist architect )