The players are just too powerful to allow it. There's no limitations if a private corporation wanted to disclose information, but unless they are compelled, it will not happen. To our congressional representatives and current supreme court, applying any "burdensome restrictions" on corporations any more than the existing status quo is political poison for their careers.
I agree with you that it would be better if that were the case, but the reality is the regulators are complicit in the system being as broken as it is.