This is another one in a growing collection of sort-of retrospectives about voice assistants, with most of them focusing on the fact that they're just not making any money, especially where Alexa is concerned;
https://arstechnica.com/gadgets/2023/03/amazons-big-dreams-for-alexa-fall-short/
And nobody involved seems to be asking the tough questions, such as whether there's actually enough of a market out there for voice assistant 'skills’.
It's kind of like AR/VR; a nice gimmick, useful for some people, but not the sort of tech that tech bros desperately want it to be.
So they're jumping headlong into ‘AI’ assistants instead 🙄