It is very possible to have two identical houses with one being fully booked and the other having no bookings.
I always explain to people, Airbnb is not like ordinary rental, and much of the success of a listing goes beyond just the location and type of house but so much more:
Quality of pictures and staging, pricing intelligence, marketing outside of Airbnb, quality of the guest experience and likelihood of repeat guests, sensitivity to seasonal changes, investment, host personality and guest interaction, how long they have been at it (yes sometimes those that have been in the game longer have had time to build networks that feed into their business), etc.
So yes, in our market I've seen identical listings in the same area with one doing roaring business, and the other not.
There's so much more to hosting then simply putting up the listing! When people don't realize this, they are often disappointed at the results.