It's probably no coincidence that the mouse didn't really take off big time until the patent ran out. Although I'm not sure if Commodore or Atari even licenced it? they were doing mice in 1985 and the patent expired in 1987.
People who think WIMP is dead due to touch screens probably aren't using their computer creatively. The time before the mouse was very frustrating.
The mouse-less computer was like the mobile phone without a touch screen. Drawing anything on the screen was like using an etch-a-sketch.