Originally Posted by
Bohemian1
This is an interesting wrinkle, although the details on e-up processing are somewhat lacking (bolding mine):

In no world do I think processing upgrades 15 minutes earlier is a good thing for "frequent fliers".
It just means that in late IRROPS, they're going to have to delay my rebooking so they can downgrade someone first. That's bad for 2 FFs.
Upgrades are processed 5 minutes after check-in closes. If check-in closes T-60 instead of T-45, that's 15 minutes earlier.