[Williemakeit]

That's true sometimes. Sometimes its "smash and grab" other times the thief has some time and breaking a window will draw attention. Think about it, If you could easily just unlock and open a door wouldn't you go that route rather than making noise by braking a window. Stealth means giving you more time to look around and discover something that might be a bit more worth your trouble.
Not saying the design difference is better or worse, just different.

Well, with the rain shield you would need to smash the window. Without it, you would probably need a go-go gadget arms.😂