I found this info interesting in a Reddit aviation thread. It helps with the tinfoil hat feelings.
>He was not testifying against Boeing for anything to do with their planes. He already did that and has been public about it since 2019. This deposition was for the appeal for his own civil defamation case against Boeing, which he orginially lost. So Boeing was not threatened by his testimony in anyway. Even if they lost the case or settled, it would be a drop in the bucket compared to the harm he has already caused them and other legal issues they are already having...