This is the counter-argument to the people that point to Milwaukee's success and say, "See, we don't need a salary cap, small markets can still compete." It's not that the big markets won't think like a small market, they will eventually. And then their resources will be that much more maximized for their own benefit and the small markets become even more minimalized. Just like the "moneyball" idea somewhat became the new status quo.
Small markets will ALWAYS have their chances, it's just that nearly EVERYTHING has to go right for them to succeed at it. Drafting, development, coaching, chemistry, etc, etc. The big markets can hedge against needing everything to go right simply by spending. The small markets can't.