Is it really still an either/or choice between KDE and Gnome? I'm not a Linux expert but I thought there were more options than just these two. The article seems like it presents a false dichotomy.
2) Most other solutions don't present as much system-config stuff as well as they (or Windows, or macOS) do in the GUI, so you're in for more mucking about in config files, writing scripts, et c. with any of the many window managers (not "desktop environments" like Gnome or MATE or KDE)