non-Mac USB EFI still not supported in 1.0.8

I have an Asus K200MA notebook that has no legacy MBR/BIOS support. The new 1.0.8 version still doesn't work on it. To make it work I had to add a directory, I had to follow the directions on this post:
https://forums.kali.org/showthread.p...all-Kali-Linux

This involved creating a directory on the flash drive:

/EFI/Boot

Then copying into that directory the files from:

ftp://mirrors.kernel.org/fedora/rele...4/os/EFI/BOOT/

Specifically, I had to copy all the files:

bootx64.eif
grubx64.efi
MokManager.efi


Also, the following post gets 1.0.7 working on my 2012 MacBook Air:

https://forums.kali.org/showthread.p...-key-using-Mac

This leads me to the obvious question: If 1.0.7 works on my MacBook Air, and 1.0.8 still doesn't work on my Win8.1 EFI-only notebook, what precisely was done in 1.0.8 to make it EFI compatible?