Counterpoint: Battery life consumption rarely comes up as a feature bullet-point for an app writer, because visibility on whether a given app is a battery hog is low (both for developers and users). There are a couple of reasons iOS was so draconian about background processes for most of its history, and this was one of them. This ecosystem shift puts pressure back on developers to get creative and ask hard questions…
Both platforms offer extremely easy to access, at-a-glance views of which apps are using the most battery for any given period.