A union official is quoted as saying
"It was complete madness. This girl had a dream about a bomb being on board and she was a bit shaken. The next thing anyone knew workers were being evacuated."
Oil rigs have long been feared as a target, and the Piper Alpha disaster shows that it can be a dangerous place to be. So such a dream is both plausible and stressful. That she can't then talk to a friend about the dream without setting off a major alert would appear to be just plain silly, but that's what the news coming out of the incident so far seems to indicate.