>Even though it goes against the basic premise of human-centered design, users have to train themselves to understand when an intelligent assistant will be useful and when it’s better to avoid using it.

I find this is one of the truest things about this article. It's very easy when you first get a new voice assistant to get carried away with the features it has available. Most are either very basic, struggling to take much additional context, or simply just gimmicks/novelties. The majority of tasks can be performed faster through a GUI when you account for the time it takes to brute force the right "natural language" expression to do the thing you need.