It seems they did, just in a not obvious place. The thing with legal documents is that, if it's not in the document, you can't expect it to be adhered to. Thi

It seems they did, just in a not obvious place. The thing with legal documents is that, if it's not in the document, you can't expect it to be adhered to. This gets hairy when opposing parties have different ideas of what "norms" are, aka "unspoken/unwritten expectations", as we see here.