I'm a "power-using enthusiast" because I use Gnome3? Gee, thanks... but wasn't desktop a thing despite (in spite) the so-called "Major Companies". Canonical for one made "Unity" which was about as painful as a Rubix-cube covered in shards of glass. It couldn't have died sooner. I mean that what you get when a "Major" company tries to dominate the FOSS space - layoffs and an alienated base. Red Hat was corporate from the outset, they never pretended to otherwise, which is probably why they are actually successful and not using millions of person fortune to put on a show while loosing boku bucks in the background and laying off employees.
In short, desktop is not dead. FOSS people love desktops. Microsoft doesn't dictate anything anymore.