Uniformitarianism exists to support the time scale needed in the popular science narrative of godless existence (SciPop) but it's not a testable hypothesis, so it's not scientific.
Uniformitarianism Fails
Noah’s Math
Some folk think that they can use 19th Century Uniformitarianism to show that Noah's flood didn't happen. We hate to break it to you, but, this is the 21st Century.