Originally Posted by
IAH-OIL-TRASH
I think UA would prefer the first 3 to be the 3 highest

And for me, that still may end up happening.
Unfortunately for UA, it comes at the expense of additional trips booked on other airlines instead. So for example, due to this promo, instead of 4-6 UA trips in Q1 I might only book 3.
But perhaps that's what they intended, who knows.