Earlier quoted context omitted.
I thought exactly the same - and the photos chosen for the article don't really back up the point either. The pairs look like the same "person" to me, not one real and one fake. Anyway I don't know anybody who busts out their truest expression of self to ride the subway.
I wonder... Sometimes I suspect my early morning public transport "if you don't turn that stupid ringtone down I'm gonna stab you in the face" self is closer to my "truest expression" than my "look at me having fun being the life of this party" social media fake-self...
So I think it cuts both ways.