Why is the VM build-up so unclear

[glasya]

Just out of curiosity,

Why is Virtuemart constructed in such a weird way that it's almost impossible to find corresponding files / file locations when you want to alter something.
For instance, right now i'm working on the invoice display, and while i can find the general output for the products and the prices (components\com_virtuemart\views\invoice\tmpl), i cannot find the part where the shop name and shop image are echo'd. Why isn't that located in the same folder as the rest of the styling?

I really don't want to create an entire template override just for removing one line of text in the original file.