Yes, exactly. What Tolkien was doing at the time he was doing it was so new and unheard of that it didn't matter that his characters were two dimensional and his plot was overly simplistic. It just didn't matter. But now, I would argue, it does. At least for some. I'm definitely not alone in this, I know plenty of other people who couldn't get into Tolkien's writing, even people who like the movie adaptations. It can be a tough sell for 20 somethings who cut their teeth on more modern stuff. In a similar fashion GRRM popularized grimdark, what, twenty years ago? And now we're seeing other authors running with that and saying, I can do that, but with a more unique setting. Or, hey, I can do that but have a more focused and interesting plot, etc.