Absolutely right. Most of what passes for "brain science" in the popular media is neuro-bollocks. This doesn't stop quacks and scammers from trying to make a quick buck out of books, bullshit EEG devices and other businesses based on exploiting public ignorance.

To be clear, EEG is useful for non-quack things like characterizing epilepsy, coma, sleep, etc.

Absolutely, EEG is great in the neurology clinic. Its just not great as a "self-development" tool or a "brain-mind" interface the way a lot of marketeers would like to claim.