@matrix and in professions like aviation, where it the matters the most that people don't screw up interfaces, redesigning something with no other justification than "look, it's intuitive now!" would be an act of madness.
There's a C-17 that crashed because none of the pilots (being trained) and the trainer in the cockpit realized that they'd literally just forgotten to turn one of their engines back on. They had a failure, so it was bad already, but they would've landed safely but for the perfectly good engine they overlooked. How did this happen? New design made the engine status a little less obvious.
@matrix that's not as good as an example as I was intending, but you could easily cause accidents by making something *different* even if the new thing is easier to learn, because people already exist with muscle memory for the old thing.
There's a C-17 that crashed because none of the pilots (being trained) and the trainer in the cockpit realized that they'd literally just forgotten to turn one of their engines back on. They had a failure, so it was bad already, but they would've landed safely but for the perfectly good engine they overlooked. How did this happen? New design made the engine status a little less obvious.