Even if the phone was smaller, the majority of consumers don’t use smart phones one-handed. If you think about it, it requires two hands to primarily text anyways, the only reason you would use your phone for ‘one-handed’ applications, would be for ‘simple scrolling’. The reality is, the larger variant makes it more difficult to manipulate one-handed, which is why I preferably like the smaller version.
And it's great that Apple makes both sizes to fit the needs and wants of everyone! I'm used to big phones as I've had the Note 8 and Note 9 so I can't go any smaller than this. I'm trying to hold off in the fall as I don't know what's gonna happen with covid-19. If not I might just get the 11 Pro Max