The first thing I thought when I first viewed this very nice bike was, "Stupid. One brake and it's not in the front?". Then I thought, "Hey I don't think that when I see a coaster-braked cruiser or child's bike." I think we just assume a light weight "adult" bike, especially a single speed, will be ridden very fast in dense traffic. Maybe that's not the case. When I see a 1950's or earlier car on the street I don't think "Stupid..." even though that car can't stop nearly as fast as a 10 year old Toyota Corolla.
Bottom line is: I say nice bike. Ride it safely.