Hey Merlijn,
I think the real question for this discussion is “Why shouldn’t we implement it?”.
For the average user, voice input is an excellent way to interface with the computer instead of punching in terminal commands like you and I are used to. For example, a good AI assistant will have application integration, so I can ask it, “Play my late night coding playlist on Spotify.” Think of it this way, just like we enter a terminal command with arguments to increase speed and accessibility (example sudo apt install gedit), the user wants quick access to the hidden information. In that command, we accessed the package manager, entered authentication, and initiated a download of a specified program all in one instance. Currently, the average user cannot do that without interfacing through a terminal emulator.
A voice assistant will provide this same capability in a user-friendly fashion, without having to navigate through the dreaded GUI to search for & access a package to install. Then they could, in theory, ask the assistant to “install gedit” and watch the results. Remember, everyone thought GUIs were useless until they brought computing to the billions, and some still think that terminals are the most efficient way to interface with a machine, myself included. Because of these reasons, I feel a voice assistant is useful for accessibility, and “innovation”. Not to mention, many people absolutely love using their Amazon Alexa, etc. In conclusion, an AI-powered voice assistant, like the Google Assistant, should be implemented as a new way to interface with an Ubuntu Linux device.