I see. Yes, I agree. It's a little like that Venn diagram of Fast, Cheap, and Great -- choose any two.
I think good requirements can help. Also, good project management. At the very least, these help to keep decision-making a trade-off rather than a to-do list. When good process is lacking -- or assumed -- those things that are most important can lose their priority.
In my experience, "Quality" is almost always a farther goal than "Functional". And, I tend to agree with the original post that things of poorer quality get forgotten. But even THAT is way better than not functional (which is completely worthless).
I suppose I would think that when I see "Quality" it is because someone had the time, resources, and good process enough to get it done. Those things are all expensive.