Not to be pedantic, but binary is entirely correct in this context. We aren't talking about computer science. Binary means relating to, composed of, or involving two things.
Boolean is simply a binary variable, having two possible values: true and false.
In all fairness, Paul and Sara have been on an absolute witch hunt, seemingly angry because of Travis' capitalist ideals.
I've desperately avoided commenting on anything related to his because I've known Travis for about a decade, but... you are sadly mistaken. Uber has a downright toxic culture. Sarah might have gone a little far here and there, but it is not because Travis is capitalistic, but because he's turned into some kind of megalomaniac nearly unrecognizable from the person I knew a decade ago.
I recently saw a lovely email sent by Travis for an offsite reminding everyone that they were not allowed to fuck their subordinates and he, by extension, was not allowed to fuck anyone. That isn't just toxic to women. That is downright scumbaggery.
Boolean is simply a binary variable, having two possible values: true and false.