Siri works by listening to what you ay incase you want her to do something - so when you mention something it is assumed tht you are interested in it and want more information. So does Alexa. I visited my daughter soon after they intalled Alexa in their kitchen. Every time someone said anything with "ex" in it Alexa answered them! There is no way I would have any of these voice-activated systems in my house!
If I was completely unable to control something without using one of them, I would switch on Alexa or Siri or any other of the damned things at the socket first, then switch it off again as soon as I had used it to switch on whatever gadget was essential!