The potential would be there, if they would focus on the assistant-part, and take the voice just as a mean to interact with the assistant, besides other means like clicking, typing, showing complex information on a screen, etc.
Voice alone sucks, it's just too limited to be useful on a grand scale. Similarly, command lines suck too. The shell in general has the same problems that Voice assistants have, just that they have more value and had decades to mature into something actually useful. And toady we have unix-shells which reduce the problematic parts by many levels, and still receive constant improvements. This is missing for voice assistants, because unix-shells are growing and improving in an open space, where everyone can add their own things. This is not happening in big tech.
Voice alone sucks, it's just too limited to be useful on a grand scale. Similarly, command lines suck too. The shell in general has the same problems that Voice assistants have, just that they have more value and had decades to mature into something actually useful. And toady we have unix-shells which reduce the problematic parts by many levels, and still receive constant improvements. This is missing for voice assistants, because unix-shells are growing and improving in an open space, where everyone can add their own things. This is not happening in big tech.