ExploderWizard
Hero
Rule #1
"This is a written module nothing will deviate us from the path of the written module."
So to answer your question, no the players and their characters are in no way driving the adventure. Everything is going as written in the module and any attempts to think outside the box or push any variation or change is quickly and totally crushed down.
Find out if you are the only one who thinks the game isn't fun. If so, then you must decide if your time would be spent better doing something else.
If most of the players feel like you do then approach the DM tactfully and bring your collective concerns about the game to his attention. His reaction to players not enjoying the game will help you decide what to do next.