I read your post in the OF thread and was happy to see you got the recognition.
I was in the air last year for my 60th birthday. RAP-DEN was most definitely UX (from memory) but DEN-BOI might have been UA metal. I was kind of happy to avoid all the attention, but just a bit disappointed at what was such a missed opportunity for UA. Whether the crew has time for these things is up to them, but the automation department hopefully has all the alerts programmed in!