The "they do this in their spare time and that this is for free and all that jazz" is the entire point why we haven´t released a campaign yet. Yeah, free time modding and not getting paid so having to have a regular job / school is indeed a thing. For someone not involved, however, it´s just "all that jazz".
We want the campaign in a playable and for us enjoyable state. If we rush it out (why would we even ?) noone can play it properly and everyone will complain.
We are close to a campaign but we´ll release a campaign only , you guessed it, when we think it´s ready.