R available but no upgrade.
Now I have the situation that R for a flight next Sat evening opened up today (3 days ahead), and no one upgraded at the T-72 hour mark. Same number of seats are still booked in F both before and after EUA - so I know no one was upgraded.
(And I am not just checking seat maps, I know how to check for true status).
So why wasn't I upgraded - unless CO disabled (by one means or another) the EUA run for this time slot. I am the only person on the flight sitting in any of the exit rows or row 7 on a 753.