Some of it may have to do with the angle the bike is photographed from. I run 3.75 inches of drop from the top of my saddle to the top of my bars but I can take a picture and you'd swear there is 6-8 inches of drop depending on how I shoot it.

Fit is personal and should have more to do with your comfort and flexibility than a preconceived ideal that you need 4 inches of drop. If you're comfortable with 1 inch difference between the saddle and bars, that's how you should set up your bike.