As for taking EGG at face value....there are legal issues involved, for one. Far too many details in D&D are astonishingly close to Tolkien...at least, in AD&D. The original D&D was fairly generic, and one could easily see the influence of Howard, Moorcock, Vance and Leiber, as well as Tolkien.
[snip] EGG grabbed from a wide variety of sources (clearly, from his favorite authors) and from popular myth, besides. Hence monsters from a myriad of mythologies and weapons, armor and technologies from fact and fiction over the ages.
In other words, I don't think EGG is saying he didn't take from Tolkien...more that he didn't rob Tolkien pell-mell and scratch the labels off: many of the authors he grabbed ideas from were contemporaries of Tolkien and much of the mythology was centuries older. Many people aren't as aware how much material Tolkien himself grabbed from other sources, as well. But Hobbits? Well, there's one that's pretty much indisputable.