I agree. Remember Amazon's little dash buttons they sold to allow quick reordering of products? They contain a microphone. I'm pretty sure they didn't mention that in their public documents, and it never seems to have been used for anything except an ultrasonic pairing procedure with some iPhones, but it definitely exists. HN didn't get mad because Amazon has never claimed to be a morally good company, so they aren't the current corporate bogeyman.
It seems to me like disclosing when I sell a product all of the nefarious ways it could possibly be OTA updated is a little bit of an extreme position, given that even a simple accelerometer can be used to track you and sometimes record sound. In short, if you think a company is actively working against your well being, don't put anything they make in your house. Otherwise, don't worry.
They did? You are wrong, I find that equally concerning. I do make choices on electronics based on their hardware. I do not have any devices like he echo or homepod because I find them intrusive. Maybe you two don't but I definitely do. I have two devices with microphones and cameras connected to the internet as far as I know and I have taken the necessary precautions to ensure that those are safe. Now I have to open up my other Google products to check if they've been bugged. You bet your butt I'm a bit miffed.