> I can claim that you destroyed the pipeline and it would be equally as valid at this point.
No, it wouldn't. The narrative provided by Hersh's source, whether it's true or not, explains many of the facts that demand an explanation. It provides plausible answers to the questions "How were the explosives placed", "How were the explosives triggered" and "how weren't they detected". Not necessarily true ones! But plausible ones that are internally consistent, and don't in themselves raise huge new questions.
If you want to be in the running, that's what you need to supply too.
This is not a defense of Hersh, it's a defense of his article. You should consider the claims in an article for their internal consistency, and consistency with public evidence, even if you don't trust the source.
This article is remarkable for how different it is from Hersh's Syrian gas claims. There, to the degree Hersh has answers at all to the similar questions how were the chemical weapons acquired, how were they placed and how were they triggered, they just raise impossibly hard questions (like "how was this coordinated", "how did all the participants go along with it" and "how did Russia and the Syrian government utterly fail to expose and document any of it convincingly")