Well the update is installing but I did a noob-move and forgot to "temp un-root" before installing lol. Looks like I'll be fastbooting back and going at it again haha.
You absolutely cannot temp un-root before the update. Historically this has ZERO bearing on your ability to retain root post-update. I hate that this rumor got started and I spend half my time debunking it. Regardless this process requires that you have root access to function. Period. Where in my directions does it say to temp-unroot?