Exactly, you don't need to do this with iPhone, this just illustrates the point of unpolished software. Why should I waste my day looking at battery usage for apps. Maybe I should also look at the CPU monitor for half an hour to get an overall understanding of what is happening on the phone, so that I can make a correct decision in turning some apps off in the morning and turn some apps off at lunch etc...
That's because the iPhone severely limits what you can do with it. I'd say a one-time investment of 5 minutes to solve any battery life issues you might encounter is irrelevant compared to the feature differences between iPhone and Android.
