Wrong DRY is necessarily a premature abstraction because every act of DRY creates a new abstraction. If the DRY was wrong, the abstraction (new method) it generated is premature.
I should have stated my definitions clearly, because I might be using rather unorthodox definitions of “wrong” DRY and premature abstraction.
Premature abstraction is premature at the time of abstraction. It aims to address future needs that may never happen. Wrong DRY is correct at the time of abstraction. It is wrong only in hindsight when a different need that is not addressed by the DRY arises in future. In that case, it should be easier to change the abstraction than to find duplications and DRY them. DRYing early also allows getting the benefits early until the needs change.
