Expert Long Rester
In this case, we also have the mechanics of the game match up exactly with what he was saying. D&D mechanics are all about shorter, fast paced adventures and larger than life heroes. Those are things that clearly support exactly what he said because that was most assured not how Tolkien wrote, but match Liber, Howard, et all.
And yet Adventure in Middle-Earth, a D&D 5e OGL product, is doing a bang up job at my table of giving us very Tolkien paced adventures with repeatable, down to (middle)earth heroes. Go figure.