It was a superfluous thing they gave to a certain criteria of members. Which ended up being a farce because the link to apply became public so it wasn't as exclusive as they hoped.
Being a WGT Nation Member means nothing.
We have a special tournament made once, once.
You're not missing anything.
The little pennant that we now have to put up with looks like a tacked on afterthought in the GUI of WGT.