I thought it was strange enough that I called the Chairman's Desk. They seemed confused by it as well. They confirmed that being on UA ticket stock doesn't matter. They don't know why it ran at +8 days. Speculation that there's a system glitch when it's on UA ticket stock that makes it run early and then shows that complimentary upgrades aren't available at that time. Hopefully it will fix itself tomorrow with the 7 day window.
Would like to hear if anybody else has had this happen to them and confirm that there were no issues with the regular upgrade process.