When one presents a theory to overturn established fact, the onus of proof is on the ones proposing a new theory.
This is standard operating procedure in both science and historical studies.
One may propose anything one may choose, not matter how mundane or hyperbolic, but the proof remains on the ones making the theory.
I could propose the Arizona was painted in pink and purple polka dots, but without evidence also being supplied, it is just a proposal.
Ron put forward a theory that Arizona was repainted out of Ms1 in 1941 into a schemo that wasn't approved for the Pacific Fleet. To date, no documentary evidence has been provided. Until the evidence, beyond a model at the visitors center and a few painting, is presented it will remain an unproven theory.
Sorry to bust your bubble, but that's how it works. One does not get to propose a hypothes and insist other disprove it, which is exactly what you did. It is not the onus of those awaiting the evidence to be presented to disprove it never happened.