In fact, I would say that the recent setback of the LHC is expected! You can't design and operate a machine that complicated, that big, and that technologically advanced and not have some form of failure. Many physicists in the know thought that the first series of start-up that they had to get the beam in the ring was unusually smooth! They expected more problems with that than what was seen.
My buddy Ben has started a blog (welcome to the blogsphere, Ben!) and he has this rather amusing anecdote on the problems faced at the Tevatron both when it first went online and at the start of Run II. I think this will put things in perspective as to why problems being faced at the LHC is, really, not unexpected. The only thing we don't want is a show-stopping failure, and this isn't it.