Here's an interesting video. I don't listen to country music at all, so watching this video I was very incredibly surprised by how much it seems that he's correct, today's country music sounds 100% like just regular pop music sung by someone with an exaggerated southern drawl. It's kind of fascinating, actually.
As a non-fan of the genre I guess I can't really offer any analysis of his...err, analysis, or his determination that this shift in style is a negative thing. The only thing I would disagree with him about is that there's "nothing" connecting this poppy new music with what he deems to be more traditional country; even as an outsider I am very confident saying that the vocalization, or country affectation, is a key component of country music and unique to it. I'm not just talking about a "southern accent" (although true it is certainly very rare IMO for non-country music genres to feature any even remotely southern-sounding accent); it's a very conspicuous singing style that I think of as "croaks and squeaks", although there's probably a more formal and less-unflattering name for it. There is no country song I've ever heard that doesn't have it; and there is also no song that has it that isn't a country song. This new "blander" music still has it - arguably it's the only thing that still makes it "country".