Full story: https://arstechnica.com/tech-policy/2021/01/filing-amazon-wa...
Also note that it wasn't removed. I'm not even going to repeat that post here, but absolutely no platform would keep this online if reported, so "very similar terms of service to other content companies" as someone up this thread claimed isn't exactly true.
Re:Facebook Incubated the Insurrection
by imnotlost on Thursday January 14, 2021 @12:01PM
(#25778846)
This is what AWS said in their letter to Parler before cutting them off. It sounds reasonable enough to me
https://www.gadgetsnow.com/tech-news/read-amazons-letter-to-...
You wrote that Amazon warned Parler about their content, but that's not what your link shows. It shows that Amazon asked a question about policies regarding specific posts, and Parler answered with their policies.