> The heart of the statement is that he is denied standing on public interest grounds because they dug up a case law that effectively nullified public interest ground exception which comes from u.s. code.

Nope; while the court elected not to use it's discretion to allow public interest standing, there were a stack of other reasons for denial cited that would have meant denial even had the court exercised it's discretion to allow public interest standing. Which is why they didn't do it: no court willl exercise that kind of discretion unless the issue affected by that discretion is decisive.