Looking at it again on the computer, it does look like the outer sheared off. Once again, no proof that it's genuine or that it broke during driving.
All wheels will eventually break. What is important is how much punishment they can take before failing catastrophically (quality of construction, materials, QA). The main point of this thread is a company that copied designs of other company is having a bitch about imitations being sold. The counter-point is that those fakes are labelled as Rota wheels.
End consumer should decide whether cheaping out on a set of look a likes is better than giving money to the people (engineers, designers, back-end staff, sales people etc.) who designed/built the genuine ones.