Yeah, I have no axe to grind either. I've always hoped they would do well. My point is, the aircraft - as it is now - is not suitable for making money. It may be able to do the route, I didn't say it couldn't but frankly no airline should ever rely on a "relaxed schedule" to justify it's aircraft choice. An aircraft needs to fly to make money.
You said yourself, "at the prices they are charging..." which I'll agree, the fares are low. From a revenue management point of view, you simply cannot have a low density, thirsty aircraft AND low yields. It is purely unsustainable.
That said, I really do hope it works out for them.