Anthropic was the only frontier lab on bedrock for a while. Hate to break it to you but there are in fact many scenarios with reasons and pressures for non engineering-driven decisions to dominate

Let's keep the discussion civil

That's rather extreme? There is an possibility than Amazon's engineers are neither infallible nor idiots. Regardless of this specific situation highly talented engineers very often take decisions that lead to suboptimal outcomes on organizational level due to various reasons.

One can think the circumstances a circus without thinking the participants all to be clowns.

As for your question, seeing what others are doing helps one decide both what to do and what not to do.