It mainly depends on how the crash will look and what the networks will make of it. A crash at the airport for all the invités to see and readily videod and broadcasted worldwide will be the ultimate PR
nightmare. Video's of the burning Concorde and the graphic photos of the DC-10 at Chicago plus the story about the passengers seeing their own crash on the on board moviescreen basically killed further service or sales respectively of these aircraft. Also the widely broadcasted Sept. 11 and Airbus 320 crashes have made many people scared.
But if there is no clear or graphic footage of it widely available, like the A-330 testflight, and the problem is fixed, not many people will care.