Outside of Science, there’s no harm at all. But inside of science you’ll have to subjugate God to all the same standards and tests that any other theory has. Cause/Effect, replication, etc...
Strange, the absolute certainty that there is no Creator, in itself is a religious belief,
is not subject to the scientific rigor that you propose -
it’s simply stated as true through the “proof by arrogant condescension.”
If there can be a "before" the known laws of physics, there can also be an "outside" of the known laws of physics. And if the universe has a Creator, one who actually created the whole of space and time and all the laws that science seeks to discover and understand, He must be in that "outside," since if He were "inside," He would not be the Creator, just as a statue cannot be its own sculptor.
How then do we "test" for Him? Perhaps by finding His fingerprints: the Anthropic Principle, evidence of design in life, communications with mankind that can be tested and authenticated, etc.
Oh, but I forgot: We're not allowed to even inquire in such directions. It's just not scientific--at least not according to the modern priests of atheism and humanism.
According to “curiosity” (FR poster), only empirically falsafiable can be used to separate science from other disciplines.