I guess that's one way to interpret what the episode tried to convey. Personally, I think it's intended to comment on the value of religious beliefs. Neelix realizes that, although his belief may be factually wrong, it did help him in many ways throughout his life. The real worth of faith hasn't anything to with how much of it is actually true, but with how it can help in certain situations. And I think the episode succeeds in getting that point across.
I think it has more to do with the power faith than religious beliefs, just like "Sacred Ground" did.
You don't have to be religious to understand the strength in the faith of will.
An Athiests faith in ones-self to over come all obticles in their path of life is still the power of faith.