Suppose we stipulate that nothing in the Universe "writes itself" or ever does anything outside the bounds of our Creator's intentions?
The scientifically relevant question then becomes, did our Creator Himself individually mold every one of millions of species on earth, or could He not allow His "natural processes" (i.e., evolution) to do at least some of the work for Him?
Can we even reliably tell which DNA modifications were made indirectly by "nature" and which directly by nature's Creator?
So, for scientific purposes, is there any reason to reach beyond science's natural boundaries to find supernatural explanations for observed speciation?
“So, for scientific purposes, is there any reason to reach beyond science’s natural boundaries to find supernatural explanations for observed speciation?”
When the only natural process that scientists can propose to account for speciation is statistically impossible, then yes, I think we have a good reason.