It seems sensible enough to me. If you steal $item from a shop, you're a shoplifter. You stole it from an abstract corporation. If you take the same $item from /my/ doorstep, you stole it from /me/.

I don't eat the losses, Amazon do. So technically you stole it from them. But just as my insurance company eat the losses if you steal my car, I'm still going to internalize it as "you stole my $item." And I can't help but judge that much more harshly than shoplifting from some faceless name.