In something this large there will definitely be points that are objectionable, but that doesn't mean TPP as a whole isn't good for the parties involved.
Reaching agreement between governments that span the globe and govern hundreds of millions of citizens requires a lot of horse-trading and compromise. The final agreement can still be good for the world, even if there are objectionable provisions.
You could equally make the opposite point: In something this large there will be points that are good, but that doesn't mean that the TPP as a whole isn't bad for the average citizen.
This is a good thing. We want negotiators to have freedom to throw out unpopular ideas, and the only part where public scrutiny is important is the actual final text that our governments might sign.
What's the point of post-factum public scrunity if the deal can not be modified at this point? It's just a farce.