Yes that's it. I'm dumbfounded by the people arguing about the common life.

It's when you need the phone the most that battery life matters and it's usually when you are very far from your common routine/habits.

When you are in holydays in a foreign city, constantly taking pictures, looking up stuff, using GPS to find places, this is when battery life is the most needed and relevant. Inconveniently, it's exactly the times where it will be hard to find a convenient power sources, exactly when you don't have time to wait in a single spot to let your phone charge and precisely when it's a pain in the ass to have to deal with external batteries and other half-assed inconvenient "solutions".

It makes a huge difference.

But Apple doesn't sell useful technology anymore, they are in the business of selling high end luxury fashion, that sometimes cosplay as technology, so whatever I guess...