I agree. It is REALLY annoying that Apple intentionally blocked hardware that can run OS 10.12 "Sierra". Literally all that is missing is a few .kext files and including the boardID in the distribution file inside the OS.pkg. I have no issue with pulling machines that simply could not have run the OS but Apple actively blocked capable machines.I used AUS to grab .2 and its smooth as glass on my MB 5,2. I've played with it all afternoon. Why can't this machine just be supported? I do have a SSD and 8GB ram but still. This thing aint dead yet....
I wish someone with an Apple Dev license would volunteer to get the unsupported .kexts signed by Apple. It would solve some of the problems.