I agree a case would be obvious if this was a publicly traded company where withholding this info could prevent an investor from dumping his/her stock if he/she felt it would tank the value of their investment. But there is no investor to protect here. There a re ticket buyers---all of whom already have accepted Snyder as he is (and has been well documented for them for years--he's the most despised owner in sports)----and still bought the tickets to watch their team.
Maybe if a group of season ticket holders brought a class action suit, they could claim some harm re: the value of their investment in seasons or something. But there is no injured party identified other than "the people of Washington DC." Plus he's not even seeking specific damages--he's suing under a civil law that provides only for fines (that won't go to ticketholders).
Given the fact that the damages provided for this law he is suing under ("up to $5000 for any material misstatement that a merchant or business makes") are meaningless, then what is his point in bringing this suit on a company that is located and operates outside of his jurisdiction? He says it's about "accountability", yet Congress is already embarked on the same exact course and has deposed Goodell and Snyder in their investigation. H won't find anything new here for "the people of Washington DC".
It's bizarre grandstanding by a guy who won't be AG by January against a team that soon won't have Snyder as an owner.