Malaysian Airlines is screwed now through not much fault on them. Anybody flying with them will have a second thought, and will prefer a different carrier.
I was in a plane the other day and saw from window a Malaysian Airlines plane from the window, and the first thought that came to my mind was this disappearance.
Is this what you think of when you see the Goodyear blimp?
I am hardly riding that thing.
I am not saying it is the main factor, but it will play on the minds of potential travellers. Given comparative prices they will pick a different airlines.