Yeah, really don't get why everything had to be changed with iOS7. Apple owns the rights to iOS6, not Scott Forstall and team. Why change how the battery charging indicator works? Let's make a little lightning bolt just so it's not like prior iOSes.
People moan that Apple(*) aren't "innovating" when they don't change something. People moan that they don't like the new changes when Apple do change stuff. Not all changes are good but you have to take a few risks.
(*) Or actually, Microsoft, or Google, or any other company.