Don’t fold
You must be familiar with those stickers saying, “fragile do not bend” placed on a lot of things you order online. Well everyone knows what they mean and why they are placed on a package. Everyone, except this delivery man or woman, who thought it was a great idea to fold a package with this sticker on it, just to fit it into the mailbox.
Maybe they missed the day the shipping company trained their team to decode the “do not bend” sticker and act accordingly. There is another possibility too which is that they simply didn’t care.