Yeah this is my main concern. I would love both Snyder and Goyer to come back for the sequel, but they have to be able to take onboard all the criticism this movie is getting, and actually learn from it. They are very talented people, but if they want their work to be great they've got to allow themselves to grow, and not keep making the same mistakes.
Zack Snyder's work has constantly been berated and it's always for the same things. Incredible visuals and fight sequences aren't enough to make a great movie. I remember a quote from Snyder like a year ago where he was constantly talking to Nolan about all these great moments he was coming up with for the film, and Nolan told him don't do it if it's just to look awesome, everything has to have meaning.
David Goyer is responsible for some godawful scripts, and he still writes the same problematic material. Good directors (Nolan, Snyder) can bring alot to make it work and come across great, but they can only go so far. It sounds like another run at the script by Jonathan Nolan could have helped this film alot.
Y'know what really pisses me off. I don't know if it's because even within WB comics are looked upon as crass. But DC has some extremely talented writers working for them. Seriously, who knows Superman better than Grant Morrison and Mark Waid. Tell me why the hell they were not allowed to work on the script.