The problem arises when it was really a hardware issue and the download didn't fix anything. So they reload the system, still no joy. Now they have lost a day or two's data (how good was your backup strategy), a lot of down hours and they still have to send someone to figure out what the real problem was.
The industry has lost the whole concept of basic problem analysis. They run a script and shotgun possible solutions until something works. Unfortunately sometimes the cure is worse than the disease.
