Comment by mrandish

As I said above, the safety model predicts some lightweight stuff with a consistency not much stiffer than tin foil and coated styrofoam could fall not that far downrange. However, that's also the exact stuff that doesn't present serious risk to people or property.

So even if those claims are true, just finding a little debris doesn't invalidate the safety model or indicate there was ever unacceptable risk. The real question is if any debris from a higher risk class fell in a place the safety model didn't predict and why. That would certainly be notable and worth incorporating into future safety models.

In the absence of solid confirmation, I'm going to stick with the model and the basic physics. If the debris is just the expected stuff, I'm sure SpaceX regrets littering the beaches and should definitely pay for some crews to pick that stuff up and trash it.