I think this is good advice. I have a fair amount of experience with the ultralight stuff. It is certainly well engineered but it is simply not that durable compared to 1000D Cordura construction. Now, I definitely feel that a pack that weighs 8 lbs empty is going too far the other way; don't get me wrong. But the wispy packs made of SilNylon are just not a good choice for truly bad conditions, IMO.

Everything is a compromise, and as usual in life the extreme ends of the spectrum often cause problems.