Many people seem to be having the same problems
If you go to a tire store because your tire is flat, it's likely you'll find others with the same problem there. That doesn't mean there's a widespread tire problem.
and this has only started to happen since the last set of updates.
Nonsense! People have been complaining about the same things as you since day 1 that Lion was released. And since 10.6.8 was released. And since 10.6.7 was released. And since 10.6.6 was released. And since 10.6.5 was released. And so on. See a pattern?
Finder crashing is not a bug. Failure to shut down is not a bug. Drives not ejecting is not a bug. Those are problems with your system, and there are people here who would be glad to help you fix it if you'll just go post details on your own topic.
If you insist on waiting for Apple to fix the problem, you'll be waiting a long time.