I'm sure you're right that they're overselling with the vision of bringing tickets down to $100, but if what you say about number of passengers is strictly true

I'm sure you're right that they're overselling with the vision of bringing tickets down to $100, but if what you say about number of passengers is strictly true no airline would fly the Embraer 175 or CRJ-900, right? According to the data I could find, the Overture is advertised as having fuel efficiency similar to the Embraer 175, while carrying the same number of passengers.