From what I understand reading about this a few years ago: EEG with this kind of external equipment can't read more than one strong impulse signal at a time(that would be a simple detection, binary on or off), and certainly can't locate signal origin.

So all the peripheral sensors detecting facial muscle movement do the real work. Seems pretty dishonest to claim brain interface.

Am I misinformed? We're all waiting for this technology to develop, that creates a big opportunity for misdirection.