I also noticed that the camera filming the iPad, and the locator beacon, also survived.
Reminds me of an old Jacques Cousteau (the underwater explorer) episode...
They were trying out SCUBA gear (when this was still newish technology - told you it was an old episode). They are heading down - down - down.... Cousteau's voice-over, with that lovely accent, is saying that he had now SCUBA dived deeper than anyone had every dived before.... And I looked at the picture and thought to myself... "no you're not - that videographer is pointing his camera up at you..." 🙂