If the JAIC had found evidence of sabotage, say explosive residue on the visor locks or evidence that the ship had been holed in some way other than the bow visor being lost they would have published those findings, and a criminal investigative organisation would have started an investigation into who did it.
But they didn't. They found that a poorly maintained and badly repaired ship was operated in ways that would have combined with the aforementioned to create a situation in which a bloody great hole opened on the ship when the visor came away. The fault lies with those who maintained her and those who sailed her. Your attempt to pin the blame on a phantom "other" group holds no water. It is inconsistent with the findings, and there is no evidence for any of the other fanciful scenarios you've dreamed up. You've got nothing Vixen, you lose.