Google and Siri are good at what they do. They aren't good at other things, such as dictation.
I see the big problem in voice interaction is that a human being will ask you questions to clarify what you said if they don't understand and current systems don't even try. (Actually the search paradigm lets you do some refinement, "Ok Google" works amazingly well on Android TV.)
Superhuman accuracy at dictation doesn't translate to a useful ability to understand text. You're doing great if you only garble 1 out of 20 words. Some errors are inconsequential, but if it garbles every other sentence then you are going to feel 0% understood.
I see the big problem in voice interaction is that a human being will ask you questions to clarify what you said if they don't understand and current systems don't even try. (Actually the search paradigm lets you do some refinement, "Ok Google" works amazingly well on Android TV.)
Superhuman accuracy at dictation doesn't translate to a useful ability to understand text. You're doing great if you only garble 1 out of 20 words. Some errors are inconsequential, but if it garbles every other sentence then you are going to feel 0% understood.