Samsung doesn't blow dimensions out of the water? I find this statement obviously wrong.

Sweet spots change all the time. In fact the sweet spot can be defined as the average of the screen sizes of the desireable brands' flagships. Remember how the streak looked like 3 years ago? Like a mutated monstrosity. Now 5 inch is the norm. I'm can see it every day. People who found the omnia hd (3.7) huge now carry 5 inch phones.