Creation is essential doctrine, a non-negotiable fact based on the revelation of the Old Testament, confirmed in the witness of the New Testament. It's in the opening lines of Genesis, the Nicene Creed, the Sabbath commemorates creation and the closing pages of Revelations has this promise:
And I saw a new heaven and a new earth: for the first heaven and the first earth were passed away; and there was no more sea. (Rev. 21:1)
So sure it's important, verifiable or falsifiable depending on you convictions regarding the reliability of Scripture as revelation and history. If your looking for a null hypothesis for creation you really aren't going to get something that is going to translate into empirical testing. The limited epistemology of science is an examination of natural phenomenon exclusively, while theological principles are predicated on the transcendent nature of both natural revelation and the special revelation of Scripture (Rom. 1:18-20).
By the way, Darwin had a null hypothesis for his theory of natural selection:
“If it could be demonstrated that any complex organ existed, which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down. But I can find no such case.” (Charles Darwin, On the Origin of Species)
Charles Darwin is also quite clear that the premise of natural selection is based on exclusively naturalistic causation as opposed to a miraculous creation:
In these works he upholds the doctrine that species, including man, are descended from other species. He first did the eminent service of arousing attention to the probability of all change in the organic, as well as in the inorganic world, being the result of law, and not of miraculous interposition. (Charles Darwin, On the Origin of Species. Preface 3rd edition)
Let's not confuse the issue pretending Darwinism was ever based on a conclusion, it's always been a a priori assumption of universal common descent by exclusively naturalistic means.
Have a nice day

Mark