This is so typical of Google's policies. They will not fix something just because users report it.
Google has done a good job with some of their "undo" notifications; these work much better imho.
The proper question here has to be what pisses off more users and to what degree does it piss them off: Having to click "Don't ask me again" once after a fresh installation or repeatedly losing some tabs they had opened in the background, because they forgot about them.
Nobody should "fix" something only because users report it.