I'm extremely bearish on AI, but I'm not sure I agree with the framing "not even Amazon could..." All of the advertising around Alexa focused on the simple narrow use cases that people now use it for, and I'm inclined to assume that advertising is part of it. I think another part is probably that voice is really just not that fantastic of an interface for any other kind of interactions. I don't find it surprising that OpenAI's whole framing around ChatGPT, of it being a text-based chat window (as are the other LLMs), is where most of the use seems to happen. I like it best when Alexa acts as a terse butler ("turn on the lights" "done"), not a chatty engaging conversationalist.