I Can't Believe This Is How You Really Unload Stuff from Giant TrucksS

Apparently, if you are carrying certain goods—like woodchip—in giant nine-wheeled trucks, this is how you unload them: Strap them to a gigantic platform. And then tilt them more than 45 degrees until it empties completely.

Being a complete ignorant about logistics, this simple fact amazes me to no end. Not to talk about the photo. Is this the most efficient way to do it? Apparently so.