Eh, I'm more then willing to give a project a chance. Up until the most recent trailers I kept hope that the new Terminator film might pull it off. So it's not about writing something off. I simply don't see anything in what they have shown so far.
I disagree that F4 is by its nature "campy" in the comics. Sure it usually has a lighter tone then other comics, but so does Spider-Man. I wouldn't want a serious and dark movie about him either.