What benefit to Mac OS was there in taking the dashboard away? That's another change for change's sake that made no sense. Eventually the UI should be left alone, just as cars have four wheels and such, it shouldn't change just for the sake of it. Why reinvent the wheel?
The symptom of making computers "for everyone" was that computers became less about "computing" and more about aesthetics and ease of use for the mundane actions that most people use computers for (multimedia, browsing, social media). It's more important to change the sheen of the OS than it is to fundamentally innovate by creating new software and systems to make us better problem solvers. Even most "hot" enterprise products these days are just old paradigms wrapped up in a new shiny outfit with some basic cloud sensibilities (Slack, AirTable, Notion, etc.)