hetfield,
You started this thread asking what you thought others would do, if your intention was only to find people that agree with you then you made some success. You do not appear to want to go into any discussion that would lead in the in ther direction.
To answer your question, might I expect the malfunction of more than one system and compoent at one time, the answer is yes. How probable that event might be will only be known in the future.
You seem to be stuck in the middle of a decision, on the one hand you pressed on with your flight, and on the other hand you took actions as if there was a fire. If you took those actions then it seems you thought the event might be real - in which case, why do you now act as if you never believed there was a fire (see your emotional last post).
Either you act 100% on such an event, or you (indirectly) are choosing to ignore it. Had your time estimate to land at the divert been just as long as your 'press-on' time to land, then you have no case to answer, you got the plane on the ground as quick as you safely could.
Why are you reluctant to answer the question as to how long you estimate it would have taken to land at the divert? Why are you upset? Did you not expect to get any seraching questions when you made the post?