So people can better see what that company then does with the btc. Maybe they want to sell some and send it to an exchange. You can then front-run that. And do you want the precedent of having public companies disclosing their addresses? Do you want to have authorities tell you : "if big companies can do it, why can't you?". Do you want to have to argue about that? I can't stop them from disclosing their addresses. But I certainly won't be recommending that or praising companies for doing that. It's a bad precedent and a bad idea.