If you're confident and in fact the entire industry is moving in the wrong direction, then you should probably invest as much as you can afford in an airline that is offering simpler plans. For me, I'll trust that the airlines' leaders are the experts in their own market.
> saying that this is a desirable property of an economic system seems like an inhumane and, if taken to extremes, systemically dysfunctional position to take.
"Choice" (i.e., "freedom") _is_ a desirable property. Sometimes it means people make inefficient choices (per their values); in general, the proper response to this observation is to teach people how to choose efficiently.