Radiator problems of the 2016 Nissan Juke

My air conditioning recently went out. I was advised by the dealership that it would not be covered under the warranty because a rock had come up through the engine and poked a hole in the air compressor. Evidently, it did this without effecting the radiator or any other part of the engine. I was under the assumption the skid plate would keep this from happening, or the oil pan. If part of the engine can be ruined by a rock flying into the engine on a city street- how is this a cross over vehicle? (defective or faulty construction, design and or material). I was told by the dealership that they could not fix it because "Nissan is asking for a video of the damage" and when they do that "it means no".