C'mon man. I have firsthand knowledge of an editor asking a contributor to remove mentioning Amazon in a story because it cast the company in a negative light.
Right?
When you saw that happening, did you just let it slide? Where did it happen? Was the story originally about Amazon or was it just an off-topic side remark that didn't really fit in?
Why should I stop sawing this branch I am sitting on, I havent fallen yet ?
Your argument is that we can't prove the absence of a conspiracy.
Hence, a better analogy would be
"why should i stop sawing this branch? just because gravity has never left me suspended in thin air doesn't mean it can't or won't happen in the future"