well the Plist file is as identical as practically matters, but the actually binary has some interesting differences. There is a section that looks to be doing some type of checking/verification involving the display ID that doesn’t exist in the sierra binary.
Odd that it would see the genuine Apple display as invalid though. The display id 9ca3 is identical in the plist between Sierra and HS.
i know the hackintosh crowd battle this kext pretty regularly to get backlight and control working on non apple equipment. I’m going to do some research down that path and see if anyone has determined what was changed and why.