First problem identified! As I am not using a fresh sierra install but rather a repeatedly updated system drive over several years I found a dirty bug in S/L/E: an ancient "genericusbxhci.kext"!! After removing this ill-posed kext I am now able to successfully apply the AppleUSBXHCIPCI change port limit KextsToPatch without reboot on sleep.
However, can somebody explain why after applying all steps in the new Section USB Coniguration / Alternative Method (ASUS X99-A II) of my guide, I derive such results ?
This
View attachment 250479
instead of this?:
View attachment 250481
And this
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instead of this?:
View attachment 250485
XHE instead of XHC with no ports in the right column? An the additional AppleUSBXHCI entries, end EH01 with no entries at all?