It's because it doesn't fit into the modern zeitgeist of extreme testability and pandering to computer illiterates

Every time this kind of UI comes up in discussion, I feel like there is always someone groaning about how much extra effort and cost is involved with giving the user too many options. In fact, you could say that modern software seeks to eliminate all noncritical optionality. Combine this with gobs of pointless whitespace, an inexplicable need to humanize pretty much everything, and smother the user in unnecessary feelgood emotions...

And then people wonder why modern apps suck so much...