Not sure about that. I used to use Mandrake/Mandriva and it was an excellent RedHat based KDE distro. Even Fedora is mostly OK with KDE. It's not ideal but it mostly works.
Most of the listed "reasons" are actually not reasons, it's mostly PR. Let me know when Gnome offers sane configuration choices. I don't have a problem with simplicity, but I do have a problem with simplicity forced on me. I want to be able to configure this thing if I wanted to. Simplicity can easily be achieved with sane defaults backed by configuration choice. Also many configuration goals can be achieved by plugins (glorified by another commenter here) but why do the Gnome devs make it so complicated to achieve basic configuration goals? Why do I have to remember esoteric key combinations in order to execute the most basic functions?