Ironic choice of words...
So to me this has always technically been a thing with Linux and while Zorin OS has been the only project that actually tries to offer a flexible enough experience for the desktop (such that you can get both mentioned "styles"), my personal preference will always be Cinnamon. It is a VERY outrageous claim to make that Windows offers any kind of superior desktop customization or flexibility than Linux. Most of the popular and well maintained desktops mentioned in this article can actually be tailored to look like MacOS or Ubuntu's Unity and usually WITHOUT forking the DE. The author mentions important pieces in the beginning and then derails into the usual longtime argument of "why don't you all just do one project for for DE?"
Let's look at a few lines here.
"There is a lot more to life than the tired old Windows model. What GNOME and Pantheon are doing to reinvent it is great, but at the same time both remove a lot of the customizability and flexibility that some of us rely on… as well as features that were not only crucial to users with some disabilities, but also helped everyone."
What are you trying to argue for here? Should yet another desktop be curtailed to supplement some missing features from a select DE in the Unix desktop landscape? You're literally preaching to the choir there. You even admitted Mate (Gnome 2) did the things you wanted it to. What you didn't seem to acknowledge is that Gnome itself has been the most forked DE in the community due to it abandoning useful and commonplace desktop components. These "reinvent" initiatives by Gnome and Pantheon do not merit praise but instead should be sanctioned. The reason why Mate, Cinnamon, Xfce, and LXDE even exist now is BECAUSE Gnome has failed to actually provide a meaningful/useful/friendly desktop out of the box. If you want to blame any one project for why so many identical desktops exist now, go blame Gnome and their hoity-toity crew of devs. Obviously, there isn't really much more to life than a UI that plainly WORKS. What Unix/Linux and the world needs is greater adoption of usability and accessibility features for the relevant software... what it doesn't need is the wheel to be reinvented. You can claim MacOS as revolutionary and yes it is like comparing apples to oranges but guess what? MacOS still has their taskbar and their panels and context menus BECAUSE they work. It doesn't matter if the majority of desktops use the Windows 95 style arrangement or components... it's what everyone uses whether it's Windows 11 and it's style of MacOS and it's style. You need these graphical components to actually have a GUI. Nobody today uses RiscOS on their main PCs... want to take a wild guess why?
"There are other designs out there. There are more desktops than Windows and macOS, and all offer their own unique benefits. Reimplementing the same old desktop model over and over again doesn't help anyone: it just wastes a huge amount of talent and effort. ®"
How can this be true if Gnome2 (i.e. Mate) offers some of the benefits you claim are important despite Mate itself being a fork of what Gnome was? Obviously then it is quite clearly not a waste of talent or effort since it caters to a cause you apparently care for. Gnome and all the other MacOS knockoff DE in the community do not interest me because they try to stray away from what plainly works. Docks are not miraculously better than having a panel organize the active apps for the sessions... they are alternative. It is also plain preference. Panels actually don't waste space when they are used correctly--and by that I mean not as done in vanilla Gnome. The modern Gnome desktop offers only a specific user experience that has abandoned the traditional (i.e. working i.e. INTUITIVE) user experience in light of "reinventing the wheel".
My advice to the author is quit nagging over what independent projects in the community do with their time and resources... instead, if you actually want the change you so desperately seek, go make your own DE like System76 or better yet, go and pitch your ideas to them and convince them to integrate them into their own totally-not-Gnome fork of a desktop.
This article, aside from being an advertisement for all the different DE we have in the community, has been utterly pointless--more so than the claimed initiative for forking DE due to valid feature integrations which are what make them distinct albeit keeping similar GUI components—is only done likely because of a more inherent problem in the community that actually isn't highlighted here. Go figure.