The problem with voice assistants at the moment is the same as command line tools.
You have to know what specific prompts work and don’t work etc. I often see my parents make simple queries like “turn off the white lights and turn on the night lights” only to get the response that it can only do one thing at a time.
There will be a future where this gets more and more sophisticated. But in the meantime, it’s not surprising it’s losing money.