2. Citation needed.
3. What is being discussed is "talking in a public forum." See the quote from the article: "The new policy requires staff members to seek permission from Amazon prior to talking in a public forum while identified as an employee.
4. Citation needed.
5. Indeed, you've brought forward a straw man.
> If these activities have nothing to do with work, then why are you bringing work into it?
That is none of your business! E.g don't shift the blame unto the victim. Neither Amazon nor any other company has any moral right to tell someone that they can't disclose that they work there while talking in a public forum.
I guess your point is that Maren Costa is lying when she claims the warning she got from HR for speaking to the Press frightened her?