Most of the people complaining aren't complaining about patches adding new bugs.
The majority of people complaining are doing so because they are the ones being punished every time an "emergency" fix needs to be put in.
2AM CST - 6AM CST is the prime playing time for a large number of players, the *only* playing time for many.
Everyone recognizes that the game needs scheduled maintenance, and most everyone understands that the servers will be down once a week. That's fine.
The problem, however, is that when one of these "emergency" problems is identified, instead of immediately fixing the issue, BW waits until 2AM CST to deploy the fix. So those same people who put up with the weekly maintenance are subjected to unwarranted downtime for fixes that are important enough to bypass the weekly schedule, but not important enough to disrupt any other group of players.
If these "emergency" fixes are so important, why aren't they immediately deployed?