Sorry but any operator that says it will fly a Fokker 70 to Greece is not someone I would want to spend my money with. It doesn't have the range unless you plan to ship the passengers baggage separately later on.
The concept of operating only at peak (Jul-early Sep) with low prices is flawed and may only be a one-off or limited time concept to soak up excess capacity that may exist.
This is another Powdair and the airport better steer well clear.