Yep the whole phone is about size, so it's geared to have the smallest possible footprint closed, while still having a mostly normal sized screen when opened. Samsung, like most manufacturers, scans the net for keywords, especially forums like these, so maybe they'll hear enough suggestions like making the screen a little wider to possibly do it down the road.
Honestly I don't think widening the screen a little would make much difference in the portability of the phone. The thickness and height seem to be the bigger factors there.
But that's just me talking about my pockets and how it fits in... I know others have different scenarios
They'll do what the majority wants, and I'll be fine either way. I don't mind the current size at all
I did try a fold in my pocket... what a brick!

That is not an option for me lol.