By delivering graphic evidence of the literally impossible, of hugeness beyond conception, they expand the parameters of our capacity for wonder. You don't believe it, you see it. Normal critical standards need not apply. To pick it apart misses the point. You either embrace it, ignore it, or spend an absurd amount of time in a process that yields nothing but a quantified measure of insignificance.
Avoidance is fine, but resistance is futile, pompous, and wrong.
If you can't recognize the art in that, you're doomed.