I've always been a little confused about the asymmetric concern (at least from the vocal majority) of Alexa/Google Home vs all of the other devices constantly around us that are capable of recording and transmitting. If I were willing to surreptitiously spy on my users I wouldn't constrain myself to only devices with in-your-face voice recording capabilities. I have an Echo among the dozens of internet connected devices in my home, but the Echo is the only one most people will show concern about.