Applying for a warrant through a legal process is absolutely not the same as requesting data from a tech company (especially because Amazon has incentive to cooperate with police in order to continue to sell these cameras)
Amazon is going to require a subpoena/warrant to turn over video...I'm not sure why you think their cooperation with police is required in order to continue selling cameras.
Why do you think that their cooperation must be required before they will cooperate? Police are major Amazon customers as well, what's to keep them from handing over data to preserve their good-will?
>Why do you think that their cooperation must be required before they will cooperate?
Because they have written Law Enforcement Guidelines that are pretty clear and otherwise as a lawyer I know they don't just turn over customer data and information without a written order (and even then, they may object and fight it in court).
Why do you believe they are just turning over consumer data/info/video without any court order (besides, police are customers and Amazon wants to keep customers happy)?