Are you guys morons?? The list of updates always says the same thing on the top and the bottom. The list of fixes/bugs is almost always plural but that doesn't mean it can be a singular item. They don't change all of the download software just to clarify.
Again, why would they not want to fix a known problem without telling you?? They would be jerks for getting it done this quickly.
Because it's not always good to admit there's a problem to fix.
I can point you to dozens of Apple Updates that have merely said "Bug fixes".
Look at iPhone OS 3.0.1's release notes for an example.