That's a stale insight from an old era of warfare. The purpose of quality is to remove quantity. Iran is the case study. A large stockpile of munitions counts for something, but once the factories are gone, you're on a 3 month clock. Factories being deleted can only be achieved with quality (expensive stand-off munitions + F-35s for SEAD, then missile trucks with cheap JDAMs to take out the factories).

30-50 years ago you just couldn't do this kind of warfare, the technology and intelligence didn't exist. Now you can. People haven't updated on this paradigm shift.

People are over-learning the wrong lessons from Ukraine. That is a unique war with air parity. That's why the Ukraine war is shaped the way it is. Not because this is how wars ought to be fought.

This is not to discount quantity. But you can't have only quantity unless you want to fight an attritional war for 10 years (or worse, lose your own industrial production to an enemy that achieves air superiority over your skies because they had the foresight to invest in quality).