The only way that Creation 'scientists' can obtain their 'a priori' conclusion is to warp and mangle existing natural laws and produce mind boggling 'just so' stories that make any 'Adaptationist' evidence based conjecture look positively factual.
To explain the Noachian flood they create a large water canopy without explaining the mechanism preventing the canopy from descending until needed, then ignore the heat generated by that amount of water falling in 40 days. They assume such an extreme form of uniformitarianism that no tectonic plate movement happened before the flood and then such extreme catastrophism that all current mountain ranges were formed within a few years(centuries) after the flood, neither of which fit in with the actual evidence. Again the creation scientists ignore the massive heat that would be generated by such large masses moving those distances in such a short time.
Creation scientists require the SToE to abide by a mistaken interpretation of the Second law of Thermodynamics yet willingly change such universal constants as the speed of light and gravity. They ignore the consequences of making changes such as the decay rates of the materials used in radiometric dating.
Creation scientists not only play fast and loose with the currently well tested and universally accepted physical laws, they make up their own laws, laws which have not been tested but simply asserted, which they then arbitrarily apply when it becomes necessary to limit some mechanism of Evolution.
The reason we require science to be refuted by science is because the laws and mechanisms have all been tested multiple times by different groups of scientists, many who would like nothing better than to prove someone else wrong.
Creation scientists on the other hand do not try to prove each other wrong by examining and critiquing each other's work but indiscriminately accept and praise anything that looks remotely like it attacks Evolution.
Everything that we have evidence for, and everything we have an explanation for in the SToE has to and does fit in with all the physical laws of our universe. No laws have to be ignored, no physical evidence has to be hand waved away, no twisting and shouting is needed to fit the theory to the evidence. Evolution and the SToE simply fit the evidence.
The wild stories Creation scientists come up with to explain all of the events in the Bible are memorable for their imagination but not for their science.
Certainly beats "It all happened because of a Big Bang". I wonder if someone with a bong was the initiator of this smoke in my eyes scenario and it was mistakenly named "Big Bang" instead of "Big Bong".