Alexa is not a thermostat - it's an advanced voice recognition device with AI that interprets your commands once it hears a command word. If you buy a system that is specifically designed to eavesdrop on you 24 hours a day, 7 days a week, then you shouldn't get upset if it occasionally mis-hears what you say.
I don't have an Alexa and won't have one. I don't use Siri either because they are imperfect and obviously prone to mistakes.
"...I bought a complex device that is complicated way beyond my own expertise and comprehension and I have zero understanding of what is really going on the background to make it work, who or what it communicates with and is governed by terms and conditions that I have never bothered to actually read... ...but hey... it's someone else's problem when it makes a mistake..."
I have the same viewpoint, but from a totally different perspective, but yes... with the same resolution.
Phones, if true, are a no go, they're the new bible with Facebook as King James. They are meant to be personal and whilst the religious aliteration may be a step too far, they are most definitely our new diaries. We open them to the public when we choose to, but that doesn't mean that all this privacy bullshit is going to be resolved.
The whole focus going to continually transform and bleed into the public realm until it becomes old hat. The same thing happened with cookies, and yes, a totally different discussion altogether.
But I have no sympathy at all for Alexa users who bought into this. As has been said, if these things truly do mishear its hotword/name, then it is just beggars belief that anyone would firstly buy one in the first place, continue to use it after the novelty wore off, and continue to use it after some of the reports surfacing.
There's a moral and ethical responsibility on behalf of the manufacturers to stop this happening - perhaps it will in later updates get better and learn people's voices better... my girlfriend has one and I tried a few "X's" here and there and it woke to about 20% of the things I was trying. I can't remember the hotwords, but a muttered axe set it off.