My goodness. I've been following this issue, and avoiding upgrading my firmware, for about two years now. But this is so incredibly thorough and shows just how seriously they took these concerns, and validating, or invalidating them.
They really dug deep here, and I respect them all the more for it. I've had really good experiences with Bose products, even though they're priced at a slight premium. They're just VERY high quality.