In fact I think there already *are* companies who have asked for that. I think that's why it became an issue that was even talked about in CISPA to begin with. And I wouldn't be the least bit surprised to to see some regulatory agency (e.g. the SEC) make it "required".
As for the OP's question I think people misinterpreted it. I don't think he was saying that he would volunteer to give out his FB password. I think he was saying "what do you think of a private company being able to ask for it". When he said he was "okay with it", he meant that he's okay with a private company being able to ask.