Do some reading at this site before you characterize what we're doing. Most of the terms have been around long enough for even you to accept them. (Try clicking on the link. It's to a site that explains logical fallacies, and has nothing to do with evolution).
Does the fact that mathematical statistics, probabilities, and calculations may result in astronomical figures negate their usefulness as a tool for giving evidence of intelligence or design?
No, it's that the mathematical statistics, paroabilities, and calculations are based on numbers that have no known relationship to the phenomena they're attempting to describe.
Here's an image of a man on the side of a mountain:
Intelligent design?
Seems to me we discussed this earlier. He fell off a year or two ago. Intelligent design?
Absolutely. The designer was the one that composed the photograph.(the rock formation itself has redesigned itself)
But you may not recognize it now.
Intelligent design?