Not at all. There's no rule that says that expensive or sophisticated technology must also be sturdy. These are separate questions.
What Jack said. Furcas wasn't saying, "The system is high-tech -- how is it possible for falling bread to disable it?" which would be an instance of that fallacy. Rather, Furcas's point was, "Hey, they have such an elaborate system -- how could they have missed this failure mode?"
At least, that's how I think most would read it.
Related to: How Many LHC Failures is Too Many?
My first reaction to this was that it had to be a joke, but I thought Less Wrong readers would like to know that The Times of London is reporting that repairs on the Large Hadron Collider have been delayed by overheating caused by a piece of bread, possibly dropped by a bird:
I'm rather confident that this is just a meaningless coincidence, but in light of the anthropic speculations last year about the LHC's technical difficulties, I thought this was worth sharing.
Hat tip MBlume