Why would I cite a court case here? I just cited a very common scenario in a better regulated industry. If you have concerns over legality, why don't you cite some law or examples that illustrate why you think this wouldn't be legal?
Collecting that data is about not wasting time looking for issues caused by unlocking and not grouping unlocked device issues in with locked device issues.
Collecting that data is about not wasting time looking for issues caused by unlocking and not grouping unlocked device issues in with locked device issues.