Cage plate distortions are hard to discern from photos as cages are no longer straight and parallel to rings in all cases. But cage and ring edges relating to each other are far more easily observed. Unless you are running a tiny large ring the cage/der is bent down at the cage's back end toward the ring by a lot.

But this brings a question to my mind. Usually the cage bottom edge is roughly a couple/4mm above the large ring around the cage connection to it's links/der body. In your photo that point id much farther above the ring's teeth. Was this the case before any potential bending might have taken place?

If a frt der is badly positioned the chance for chain jamming or something else catching the cage's end is greater then when the cage is properly positioned vertically.

It might be that the cage was bent both up and out to a great degree that we see what you show. Usually though when this is the case the two cage plates are no longer parallel to each other in the vertical plane.

Again this just shows why forensic analysis is so hard with out the stuff in hand, or any past history known. Andy.