Not even remotely a rookie question, Jerry. The general genealogy community has struggled with it for two decades, and there still isn't a simple answer.
The Board for Certification of Genealogists (BCG) directly addressed DNA evidence for the first time, as a separate chapter, in their slim Genealogy Standards, Second Edition Revised (2019 and 2021). Available at Amazon and elsewhere; note that Amazon shows that the version they sell is dated 2019. It isn't: if ordered, what you receive will be the 2021 edition.
I personally wish that they had gone into much greater detail about the "what" and "how" of evidence analysis for DNA, but it was a step in the right direction. As an aside, two months ago the BCG announced their first new certification in many years: Certified Genetic Genealogist.
The first paragraph in the chapter about DNA in Genealogy Standards provides a brief answer, and mirrors Doug McCallum's comment:
"Meeting the Genealogical Proof Standard requires using all available and relevant types of evidence. DNA evidence both differs from and shares commonalities with documentary evidence. Like other types of evidence, DNA evidence is not always available, relevant, or usable for a specific problem, is not used alone, and involves planning, analyzing, drawing conclusions, and reporting. Unlike other types of evidence, DNA evidence usually comes from people now living."
It isn't documentary evidence, but it is definitely a type of evidence. The catch is that the skillset for the thorough analysis and evaluation of genetic data is very different from traditional documentary evidence. Genetics is very seldom binary--seldom a yes or no proposition--and requires a solid grasp not just of the biology involved, but also of complex statistical probabilities. In my opinion, to provide truly meaningful citations for DNA evidence necessitates more than simply citing a document: an explanation of the analyses performed and conclusions drawn has to be presented.
Other researchers can't simply go look at a cited document. In many cases, they won't have direct access to the data used in DNA analysis. So it's incumbent on us to provide sufficient details about our evaluation and conclusion in keeping with the Genealogical Proof Standard. And for genetics that really can't be reduced to a simple template or formula: there are far, far too many variables.