Yeahhh... No.
A good half the problems in the world are created when we try to force oversized round pegs through undersized square holes. Besides which, was Parler not the site that required excessive amounts of personal info just to sign up?
That means if authentication failed open, that could mean that this researcher has obtained access to reams of PII. Which they'll deny or state that of courae they didn't collect or look at, but the potential breach is large enough that doing something like this is so unconscionably reckless and stupid, it ranks right up there with the event that even has this site in the public eye in the first place.
Another brick through the stained glass windows of American civil discourse. We don't even need other country's help to push us to the brink because of reckless moves like this.