As much as people think that the organization that oversees internet naming must be federal (because how could it not be, they control stuff for the ENTIRE COUNTRY AND BEYOND), both ICANN and ISOC are literally just private industry non-profit organisations, like any other 501c3. If you want to sue them, or you want them sued by government, you're going to have to contact the DA for the state(s) they are registered in.
As insane as that might seem for something as far-reaching as "the ownership of the .org top level domain".
This is one of the reasons why people around the world are a little sceptical of American exceptionalism.
I can't believe ANY possible explanation (not even incompetency in this case) except direct or indirect bribery.
Really sad to see more and more of theses cases where Non-Profits sell out (e.g. OpenAI), I wonder whether this is a byproduct of people sozialized in the age of hyper-capitalism and consumerism...