I don't know about the theory in general. But I know for me narrow hammocks, or rather narrow compared to what is apparently considered "normal", is more about efficiency.
Let me define what I mean. When a hiker cuts off extra lengths of his shoulder straps because they are too long and chances that he will suddenly grow 2' is pretty slim, it is for weight efficiency and because those straps are probably more annoying than is necessary when donning or doffing the pack. Using a pot sized for one person instead of a 2 liter pot is space efficient and weight efficient. Cutting off the handle of your tooth brush may be slightly weight efficient but may have more to do with getting all your hygiene items in the small bag you chose for it. Carrying a roll of TP without the tube is not much in the way of weight efficient, but can greatly reduce the bulk and make it space efficient for backpacking.
So in the case of hammocks. If I were making hammocks and didn't want to make every one of them extremely customized but hit the greatest band of possible users and had the largest possible sweet spot in order to let even novice hammockers get instant satisfaction, then it only makes good sense for the efficiency of business and construction to make larger hammock bodies. But in my case I only make hammocks for one person. I know what positions I like to sleep in and know what insulation I plan to use, and I want to eliminate carrying extra bulk and weight whenever possible. I make my hammocks that meet the specs I need and eliminate as much excess as possible. Does making them smaller make them more comfortable, probably not. But making them no bigger than I need satisfies me.
That said, there are ways to work with a smaller hammock body to make them more comfortable. As has been stated about changing ridge line length, material stretch, or adding foot box side options can help those that want to go smaller on the hammock body avoid losing the comfort of a larger hammock.
Bookmarks