I just realized something I hadn't really consciously thought about before in regards to how believable articles are when their sources are "confidential" and "intelligence officials" etc.
I have no problem believing an article like this at all even with no hard source, but I immediately discard reports that put the US in a positive light with the same lack of hard sources.
Then I thought "well that's not really fair, I shouldn't just believe this either then". Shortly after that though, I realized that if someone were publishing material AGAINST the US or its allies' interests then they're taking a big risk and they MUST have some sort of credible source or sources, whereas if they're just being a propaganda mouthpiece there's no risk to their sources being complete shit or even non-existent.
So while the article could be just as much bullshit as any other, it's less likely in my opinion, because there is a risk to publishing completely false information based on shadowy or non-existent sources.