The point is she will fly less at higher prices, people flying less will effect load factors. There is cause and effect in every economic action. Will 4 of those 10 seats be filled by a $400 fare to provide the revenue for that flight at 0600 on Tuesday? Things will not remain status quo. I not saying this is right or wrong.
I think the airlines are starting to realize that (well, at least most airlines except those like Virgin America). It almost seems as if the airlines collectively are starting to come to their senses and realize that $59 fares to grandma's or Disney aren't profitable. So except to compete with airlines like the aforementioned, they're starting to charge fares that actually will make a profit. Further, since they realize that means less people fly, they've stopped irrational growth and/or shrunk their fleets. Heck, even SWA is doing it. So maybe that Tuesday 0600 flight doesn't exist anymore in the future so they don't need to charge cheap fares to fill it. And maybe there are less $189 fares to ABQ and we're starting to see that.