[omnimike]

This is likely very deliberate. Publishing error rates of vendor equipment could violate NDAs or just damage vendor relations. The number of units purchased can be used by stock market analysts to predict FB growth or vendor sales, so the PR/legal team might prevent the publishing of details which could be used to that effect. Those are my guesses as to why actual numbers would be left out.

[MobileVet]

One of the many reasons that I love Backblaze as a cloud backup solution is that they publish these numbers regularly. If there are bad drives in the market place, we as consumers have a much better view of it than Amazon reviews et al.

https://www.backblaze.com/b2/hard-drive-test-data.html