Agreed. There was a paper posted on the forum (some time in the last year?) which examined volume vs intensity. The conclusion was most people over-value intensity and under-value volume. Even “non-responders” eventually got good gains given enough volume.
But with this being the time-crunched era, volume is disregarded most of the time. The amateurs are paying for intensity-based services; the pro’s are being paid to pursue volume-based training.