Honestly this is an issue for other tablets and larger-display devices as well. I've used both Android and iOS on tablets and 5-6" phones and both default launchers make poor use of the display size and pixel density. The main difference is that I got tired of having to jailbreak my iPad to fix these simple issues while I can just run a different launcher on Android which behaves normally but lets me choose how many rows/columns of icons are shown.
It's doubly annoying on iOS (to me at least) since the launcher is also the "app drawer". You've got no choice but to have rows/columns of icons across the home screen so poor use of space is extra puzzling.
It's doubly annoying on iOS (to me at least) since the launcher is also the "app drawer". You've got no choice but to have rows/columns of icons across the home screen so poor use of space is extra puzzling.