SUSE doesn't even use KDE, they use GNOME... Sounds unlikely.
Even now KDE is one of the 3 default DEs, the others are Gnome and XFCE.
Like I said in another comment, I'm not sure how much is true of the reasoning of the Gnome redesign the article mentions but this part seems to pan out.
Novell bought SUSE. Then Novell bought Ximian, the GNOME company that wrote Nautilus ("Files") and Evolution.
The Novell forcibly merged SUSE and Ximian.