OTOH Wapo themselves are probably the least credible source on this matter. That being said, just because bezos isn't dictating what is and isn't to be published, that doesn't mean the editorial room isn't biased towards U.S. foreign policy interests (1, further reading on how this model works: 2)
What's a more credible source, people on the internet with theories ? That's all i'm seeing here.
There is plenty of precedent for Chinese or Russian state editorial interference in media, or the Murdoch's dictating Fox news talking points, I still see no evidence (that thing you are supposed to base your beliefs on) for Bezos interfering with WaPo. I do see a lot of conspiracies by people that don't like what WaPo publishes (Trump among them).
I just think its a little naive to assume that there would not be any influence until some academic comes in with a meta analysis that suggest that there is a statistically significant degree of influence. It's best to believe that there could be influence one way or another with anything you read in media, because influence is massively profitable.
1. https://fair.org/home/washington-post-editorial-page-meet-no... 2. https://en.wikipedia.org/wiki/Propaganda_model