Yes, I think that, because of its dark side people tend to forget another major element of Iolokus, its humour.

Zippy's comments, the Mooselet of course, Catzilla...etc, this story is full of fun moments and witty repartee, some more subtle than others.

And the mutiple Mulders are a damn interesting concept, I agree. Then again, I always had a thing for clones. :)