I'm betting some doobie smoker put it in wrong, and the engineer said.. why not.. and there ya go! Once its in the pictures, its a done deal. LOL! Im sorry, but there is no intelligent reason to put it upside down.
A daughter learned when cooking a ham, to cut it in half. The daughter finally asked her mom. Why am I cutting the ham in half before cooking? Mom said because its how we have always done it. In asking Grandma, why do we cut the ham in half before cooking, she replied.. because that's the only way to get it to fit into my pan! If you don't get it, please just let it go! LOL!