Au contraire, I think your point is very well taken.
One of the most irritating things about debating with religionists is their insistance on always having an explanation for everything, even in the absence of any evidence.
One needs to always keep the existance of the (so far) unknown clearly in view, maybe even cherish it as the source of new knowledge.
As for "the wrong", I have always liked Mark Twain's "It's not the things we don't know that do the most harm, but the things we know that ain't so." (from memory, wording probably not exact).