Or maybe consumers do not want to (because it doesn't make economic sense for them, or because they don't want to spend every second of their free time optimizing) spend a significant amount of their time doing this kind of research before every purchase decision? I have never understood this argument that as long as information is technically available companies should be absolved of meeting some minimum level of baseline quality. You're also describing an industry that's unusually transparent (in part because there are not that many models of planes); for a lot of online goods there is absolutely no reasonable way you can know what a particular brand will be like before you buy.
If they don't want to look at the relevant column in Google Flights they don't have to. But money and time are the units of caring. If someone isn't willing to take 60 seconds to research or spend $5, I just don't believe it matters that much to them.
Flights in my mind are already a very high quality product offered at a very reasonable price. I can pay $250 and get across the country faster and more safely than any other means of transportation. I don't necessarily think that extra legroom is part of a "baseline level of quality" we should expect everyone to know you feel is worth the money and automatically provide to you
