Earlier quoted context omitted.
Google, without notice, intentionally started listening to something that wasn't a wake word (glass breaking). How is this 'pretty boring'?
It's an obvious enhancement to a home monitoring product users paid money for, specifically for this purpose. https://www.blog.google/products/google-nest/5-things-know-a... Google added smoke alarm sound detection to a product that users bought specifically for "smart" smoke alarms and "smart" audiovideo recording of their home
And yet it was turned on for people who did not pay for the service, or give permission to Google to do so. Which means they can listen in whenever they feel like and chalk it up to "whoops, pushed the wrong code, sorry!" apparently.