I have a great respect for the academics who are working with the source material. My hat's off to them.
When I started in the business, there was a thing called adult fantasy, but nobody quite knew what it was, and most publishers didn't have an adult fantasy list. They had science fiction lists, which they stuck a little bit of fantasy into.
Since fantasy isn't about technology, the accelleration has no impact at all. But it's changed the lives of fantasy writers and editors. I get to live in England and work for a New York publisher!