Well, my wife and son have read everything by Tolkien available to include The Simarillion(sp?), and other works published after his death, etc. I trust them implicitly on this, and according the them and other friends of mine who are fans of Tolkien works, there are things in The Hobbit that just don't belong, period.
Insofar as 1/32nd a/c kits are concerned, I could not care less (and yes, I know it's a sacrilege to say that around here with all the WNW fan-boys).
Warren