The ski doesn't look to me like it landed on anything like a rock. Landing on a rock would dimple/collapse the edge towards the topsheet. This looks like the ski was over flexed or de-cambered such as bridging a couple moguls. A picture of the base edge might help to determine if there was an impact from the bottom. Warranty coverage will depend a lot on how the rest of the ski looks (beat up or in good shape), age of the skis and the mood of the warranty department.
Safety wise, it would seem quite likely that with the full break of the edge and the angle of the break (from back top to forward base) that it could catch on something and yank the ski. It would probably pull the edge out of the ski as well.