There are varieties of error other than projection. Anyway: If you acknowledge that Gleb's purpose was to publish an article about bias and rationality and psychology that would get Salon's readers to think about those things and learn a little (I can't tell: do you?) then I am not sure what point you're intending to make here and why you think it needs making.
Gleb wants to publish an article about bias and rationality.
Salon's readers like to read an article trashing Trump and Salon is happy to produce such an article for them.
As part of my broader project of promoting rationality to a wide audience , I published an article in Salon entitled "Get Donald Trump out of my brain: The neuroscience that explains why he’s running away with the GOP." I'd welcome your thoughts on this article itself, and also meta-comments on the strategy of using mindkillers such as politics to raise the sanity waterline by smuggling in rationality memes into such popular and populist venues.