I think the very fact that Bezos owns the Post means that any article published about Amazon (positive or negative) deserves an extra dose of scrutiny/skepticism. The bottom line is that there's a conflict of interest there, and none of us knows Bezos well enough to know if he's above this sort of pressure or not. It's highly unlikely that we'd ever find evidence of any wrongdoing, or evidence of lack of wrongdoing, no matter what -- if anything -- is going on.

I don't think we should assume the worst and discount anything WaPo says (or doesn't say) about Amazon, but I think it's important to keep in mind that Bezos owns the paper, and just continue to think critically about things.