Alternate source: https://www.msn.com/en-us/money/markets/rural-towns-are-agin...
Rural towns are in the long tail of their extended death. I gleaned from this article that once the Boomers are gone, these towns are gone. Given that, who would want to relocate to such a town having such a bleak future? I'd wager hardly anyone, which appears to be the case.
These towns aren't aging, they're dying.