Steve, you are so right. However, one member on here often used to quote the following..."a persons anchor never fails...until it does". The flip side being that then, and only then, do they question the integrity or performance of their particular anchor.
This saying came to me the other day as leaving my marina, I took note of the most common anchor on the various fingers nearby, including mine, and the vast majority are still using CQRs, the very anchor I dispensed with because of so many setting failures. I suspect mine was a knock off, and a worn one at that, (the shank hinge being their Achilles heel), so a you beaut new one would have set better, but I'm sure the other reason so many are still using this rather old design, recognised as tricky to set, is that out in our bay, most of the anchorages are so protected it would be seldom that boaters would be exposed to the kind of conditions which might cause their anchor to fail them. So if that's the one that came with the boat...that's what they stick with...until something happens, like happened to me...