Do you mean stop gouging some customers based on information asymmetry? Doesn’t bother me.
Imagine if you just went to their site and honestly got the best price that day / week.
I’m actually skeptical that there are loss-leader seats being sold on normal routes (eg where one airline is not trying to force another out of business). Does anybody have a source for that? I have always assumed that low prices were to extract as much value as possible from a plane on a given route.