Your friend is also wrong about it always being this way. I've been copying my pictures from the iphone for years, ever since Verizon started selling the iPhone 4, which was a few months after it's release. Up until fairly recently, there was only one folder that had the photos in it, although it was nested deeply, you only had to click something like 3 times to get all your photos including the high resolution ones. I have never use itunes for my iphone photos, just Windows Explorer.
Now there is one folder for every hi-res picture and you have to figure out which folder contains the low-res ones. Since I have hundreds of pictures on my phone, it's really not realistic to require me to go through each of those folders to find the combined folder let alone the high res version of a specific photo I want.
I think it's true that Apple changed it to be harder to get the photos off the phone without using their products. It looks like I'm going to have to start using itunes for photos, too.