A decade and 25,000 Alexa "apps" later and that's still just about all that anyone does with it.
The Alexa team are (were?) absolute zealots about "Voice UI" and insisted that the entire world was going to be run by voice. You couldn't convince them that voice interfaces weren't the perfect solution to every problem. They were under this delusion that Alexa would become so intelligent it could just figure out what you wanted without you needing to specify - as if HAL level general AI was just around the corner. Every user interface would become voice based. Absolute zealotry.
Combine this with the Rube Goldberg-esque back end where for years literally any "speechlet" implementation had the chance of bringing down the entire service and it's unsurprising this is the result.
I was fired a year or so after I came up with a method for interacting with Fire TVs and Echo Shows which solved the "voice cliff" problem by cutting out the round trip to Alexa and wasn't based on magical thinking. My product plan that I had prototyped and worked on for nearly a year was rejected wholesale.
Obviously, I'm extremely bitter and biased, but I swear to you it was that sort of stubborn cult-like thinking which lead to this headline.