OK but what would they publish? General ideas? The details being published would only lead to a mess as each company could advertise and make a fuss over things. Or other countries might do the same to shift things in their favor. The end goal for each country is to do things to benefit themselves, even if it means making hard decisions.
It's not like spy exchange negotiations or all other sorts of diplomatic processes are public. And it's not that things are unfit for the public per se, just that publishing each move isn't beneficial.
Yikes I never thought I'd be defending TPP-like processes. Personally I think we're (the world) not yet ready for this level of globalisation, unfortunately.
