Earlier quoted context omitted.
For some time both streams looked like they were the same. That synchronization!
They were the same. Don't know if they did this intentionally. I actually watched them for two minutes for that, and was 99% sure they're the same image, just translated a bit. The final confirmation came near the end, when the other booster entered the view, and you could see for sure, both rectangles streamed from the same camera.
I think you're right.