The degree of investigation is impressive and I commend Bose on this! However, it does sound like they had a number of issues or regressions in prior versions

The degree of investigation is impressive and I commend Bose on this! However, it does sound like they had a number of issues or regressions in prior versions of the firmware (eg. an update made some units connect to the wrong Bluetooth profile). I hope this demonstrates business reasons why it's important to get your product code right every release. Had they maintained a better reputation for competent product updates, it's unlikely user skepticism would have ballooned this into such a big deal.