> After all, can't rule out astrology being true, either.
It can (and has) actually. Whenever astrology has been tested, it has failed to hold any predictive properties. As such, it can be ruled out. You know this, because if you didn't then you wouldn't have used astrology as an example.
> Do you think this merits credulous attention from "serious" news media?
"Merits" is a loaded term and I don't think either of us are qualified to know what that means, but I'll take a shot at it.
This was an officially requested report by government officials that was requested by congress and a sizable chunk of the public. The report was released. People are interested in what the report has to say. If the news is there to report on what people find interesting, it certainly has met that criteria.
Now, what differentiates this from something like "The Weekly World News"? I think mostly who requested and released the report. This wasn't just some quack on Joe Rogan or Twitter or something, this was the United States Military: the most powerful and most-funded military on the planet.
I really do not think this is hard to parse, but just to be clear, here's an example: If I broke my leg tomorrow, and CNN reported on it, I would think "jeez, must be a slow news day". If Joe Biden broke his leg tomorrow, it would not be weird at all for CNN to report on it.