Country is changing to where it isn't country anymore. It will soon turn into another form of pop -- if it hasn't already.
Depends on your definition of what country is. The definition keeps changing, as new artists enter the format. That's what makes the format work, and has been the basis since Kenny Rogers sang a Lionel Richie song over 30 years ago.
There was a country version of the BeBe Rexha hit Meant To Be. It went to #1 in country. At the same time, they're playing a song by David Lee Murphy, who had country hits over 20 years ago. The definitions of what make a song country have changed, based on the influences todays artists grew up with in the 90s. If it was OK for Shania Twain to do pop country in the 90s, why is it wrong now? Country now is about a lifestyle, more than about a type of instrumentation.
My point is what keeps country relevant today is that the format evolves. That's what rock needed to do, but it really didn't. So people who may have liked rock music at one time are finding what they want elsewhere, and for some, that may be country.