Maybe Amazon is different in other countries (I doubt it), but in my country after ordering on Amazon you send stuff back to the seller, not to Amazon. The ticket for that is handled in Amazon's interface but the actual interaction happens with the seller.
The Internet of Silly things strikes again. Perhaps people will grow cautious of buying into products and services which they have no real control over.
Excellent, you can join the steering committee where we ignore all lessons learned from any previous product security failure, and add in multiple expensive features users can't comprehend, let alone use. To the cloud!
From what I understand looking through the paper, this is only a research paper, without any source code. So right now it's not possible to say what the hardware requirement might be.
> We don't know anything else
It's almost like you treat your 'doubt' as a matter of fact, rather than pure opinion.