I think that Parsons criticism doesn't really apply that often. You can say that about a record like Jacksonville City Nights, but otherwise he's mixed it up enough.
Love is Hell kinda sounds like Jeff Buckley. Cold Roses has a Grateful Dead vibe. A bunch of songs off Demolition kinda sound like the Replacements. Not saying he's the most original dude ever, but every Ryan Adams record has at least a few amazing songs. The new one is a grower.