Depends on how serious that crash is, I would say. How difficult is it to find what causes the crash? Is it simple to fix or does it require a lot of work? And if it's fixed won't it cause another problem, which causes another crash? A crashing campaign is no small patatoes.
I must admit feeling trully sorry for those guys. Must be very frustrating.
Personally I would rather have a fixed release date, even the 29th of April, than this. But anyhow, no show this weekend.