I'm honestly quite confused why they can't revert to a "dumb" speaker mode and then provide a proprietary Chromecast equivalent that only works with their speak

I'm honestly quite confused why they can't revert to a "dumb" speaker mode and then provide a proprietary Chromecast equivalent that only works with their speakers that can be trivially replaced This would mean that if you want continued software updates you just plug in the expansion pack, like I did for my N64.