Psychology, as has historically always been the case--meta-analysis itself bloomed largely from the field--is the one turning inward and looking at itself. And it's getting crap from people who love to use it as their favorite punching bag.
The irony of this article is that it's psychologists looking at other psychologists, doing the math etc.
The truth is closer to the second hypothesis by the author: bullshit is incentivized everywhere in academics. Reality is less interesting, harder, more incremental. Everyone wants the next genius savior to point to because it's a simpler story than reality. Sexy means more pubs, more grant money.