It's all a matter of least effort. I can imagine a few situations where it's handy, but most times the gain in effort to setup a reminder for example is offset

It's all a matter of least effort. I can imagine a few situations where it's handy, but most times the gain in effort to setup a reminder for example is offset by the inappropriateness of the situation. It becomes net positive at times when your hands are not available (the promo video shows people running, cooking, driving)