It's a lot of work in my case and I shouldn't have to do it. And if thousands of others have the same bug, why doesn't Apple say anything about it?

I followed Apples procedures for setting up my new iPhone 5, but those procedures led me to have a phone with very poor battery life. Do they not have any responsibility here?

Any many of the reports say that taking this step helps improve things a bit, but that the iPhone 5 is still quite poor in comparison to their 2 year old iPhone 4 when it comes to battery life.