In case of MH370 disappearance, Malasyian Airlines showed great degree of incompetence. Now they let their MH17 to fly straight through this dangerous war zone where fighter jets and SAMs are active all over the place. Why? To save some fuel. How brilliant. So no, I wouldn't say its 'a coincidence, that company is horrible.
Exactly what I am thinking. This company has deficit for years and they try their best to minimize the cost. Many decision are made without giving safety the first priority and that's why tragedies often take place.