There was ABS on rim brakes a while back, and it seemed to be pretty effective. It didn't take hold for whatever reason - not a pretty solution, not a problem that needed solving, or lack of marketing, etc.
Maybe Shimano gets to that point with their recently-patented boost-by-wire, but I like hydro as it is for the immediacy, tactile feedback and stopping power vs lever force, etc. So yeah... meh.