-.- you guys make no sense at all.
First of all there is no reason to argue against quick reply, I don't see what anyone could possibly lose from it.
Second of all, it's a lock screen so your screen doesn't stay on, not so no one can access your private information. For that we have a passcode. If you a passcode, obviously you would have to put the passcode in before replying.
I just don't see why anyone would argue against it.