Poor warranty service honestly, and a poor design.
If it is worn from use why would you expect it to be warranted?
Its rather obvious that there is minimal engagement of the cylinder with the cylinder stop because of a poor design. If you notice the cylinder stop tapers toward the bottom, but that is where the cylinder engages the stop... it is attractive, but not overly functional.
With tolerance stacking, it doesn't take much for the cylinder to override the stop, crane to frame, and on down the line. A poor design IMHO, and with very little material to prevent the cylinder from overriding the stop, and when that's gone on the face of the cylinder stop, it makes a nice ramp for the cylinder to ride up on the stop... bad!
So yes, a reasonable customer would expect Smith and Wesson to fulfill their obligation under a "life time warranty"...
and I'm NOT buying a Ruger, I've owned several, and had two good ones, an early 44 Mag Flattop from 1961. I bought a new 5" stainless Super Black Hawk that was a heavy, uncomfortable thing to shoot...
It would not group inside 5"s with any load, I sold it to a friend who was sure he could build a handload it would like, NO LUCK!!
that early Black Hawk was gorgeous , and would group into one hole all day with everything. I traded it for a Colt New Frontier with a 45 Colt and an ACP cylinder... that was a disappointment.