As evidence of authenticity, Amazon commented on the matter officially after Gizmodo reported this leak in 2018,[1] which I have pasted an excerpt of below.
> We’re perplexed as to why Gizmodo takes issue with a company wanting to better engage its employees, train hundreds of managers to maintain an open and direct dialogue with associates, and create channels to drive innovation on behalf of the customer in a caring and inclusive environment. The reporter clearly cherry-picked soundbites from the video to meet his editorial objective and do not align with our view on how to create career opportunities for employees.
> We’re perplexed as to why Gizmodo takes issue with a company wanting to better engage its employees, train hundreds of managers to maintain an open and direct dialogue with associates, and create channels to drive innovation on behalf of the customer in a caring and inclusive environment. The reporter clearly cherry-picked soundbites from the video to meet his editorial objective and do not align with our view on how to create career opportunities for employees.
[1] https://gizmodo.com/amazons-aggressive-anti-union-tactics-re...