Now I'm confused too. I have to test this.I ran it the same as @joelw135, two times. Code finished running after around 10 minutes, reboot, apply patches, still on GM. Not sure how you did it.
[doublepost=1540658210][/doublepost]@thegurgz @joelw135 I figured it out, you need to use yes | sudo cp -rf ~/Desktop/macOSUpd10.14.1/Payload/ /
If you see any new files on your root drive pls delete them as they are not supposed to be there.