I am a dyed in the wool partisan, but you are too. What does that even have to do with this discussion?
Do you disagree that the guy is just mouthing the stereotypical standard rightwing critique of anything that isn't rightwing media going back the last 30 plus years? There is nothing original in what this guy is saying, and this type of guy is always a bad faith gaslighting bullshitter who will claim it's just in the last few years that the "change" or whatever the hell happened. It's the standard variation of the "I didn't leave the Democrat party, the Democrat party left me" schtick. It's bullshit.
I have my own criticisms of NPR, but the idea that their emphasis or concentration or whatever has changed in the last few years is nonsense. Just the same old rightwing "working the refs", this time with the new wingnut vocabulary references to "woke" and whatever other catch words that are fashionable in conservative circles now.
This guy has his entree into the wingnut welfare circuit and will probably make a nice living out of this piece. If you're a grifter with no morals or conscience there is a lot of money to be made these days playing to the Cons.