This is up for debate, but I would venture to say that for years people demanded not for bigger screens on iPhones, but rather, bigger screens accompanied by the best use for them. Why do people want bigger screens, just so they can have a bigger device that takes up more room in their pockets or purses? No, people want bigger screens for the benefits and the usefulness of having a bigger screen.
By just adding an extra row of icons (to the extra row of icons added on the iPhone 5), Apple is just wasting precious potential to make the homescreen much more functional. Sure a big screen gives more view of a website when browsing, or shows more messages when texting, but these things are just the bare minimum of what a bigger screen can allow for. Samsung goes as far as letting you float applications around the screen like Windows... I'm not saying Apple needs to go that far, but widgets on the homescreen isn't anything revolutionary.
Is Apple known to be a company that aims for bare minimum? I don't know, but as long as they keep having a homescreen that is just a dumpsite for small, uniformaly sized app icons, that's what they're doing. And of course, if a user doesn't like widgets, they can just keep using icons like normal. As some here have mentioned, it's all about having the option.