Xbone has simpler tress fx?
Compared to what?
XBox and PS4 use the same tress fx implementation, and tress fx 2.0 although lighter is not simpler than the original version, just optimized.
I do not remember the DF article ever mentioning something about a simpler tress fx.
Best to discuss it here:
http://forum.beyond3d.com/showthread.php?p=1824028#post1824028