Israel is absolutely silent on the whole matter. For those of us that have slightly deviated from military instructions (not Israeli, necessarily) when operating under their guidance, you know how accurate their equipment is. They saw and recorded the entire event.
With Israel's experience with the Sinai, they watch that airspace very closely.
Of course, the US knows as well from their various satellites monitoring in real time.
If it were a purely structural breakup, the major powers would have been clued in.
Judge the past by the actions in the present.