I get these results after following the above:
Last login: Sat Nov 4 00:07:42 on ttys000
Antoniss-Pro:~ antanast$ /Users/antanast/Downloads/VDA/VDADecoderCheckerSierra ; exit;
/BuildRoot/Library/Caches/com.apple.xbs/Sources/AppleGVA/AppleGVA-11.1.22.1/Sources/Slices/Driver/AVD_loader.cpp: failed to get a service for display 5
/BuildRoot/Library/Caches/com.apple.xbs/Sources/AppleGVA/AppleGVA-11.1.22.1/Sources/Slices/Driver/AVD_loader.cpp: failed to get a service for display 6
/BuildRoot/Library/Caches/com.apple.xbs/Sources/AppleGVA/AppleGVA-11.1.22.1/Sources/Slices/Driver/AVD_loader.cpp: failed to get a service for display 7
Hardware acceleration is fully supported
logout
Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.
[Process completed]
Does this mean it's OK? In MacX I still can't select Intel Hardware Encoder.