Gipilot. I think you are mistaken. Do you really think they will see it your way if you do not fill it it?
Do you think the majority of the crews will not fill it in?...think again!
Don't you think it is better to send a clear message by ticking the box that says "I am not happy and I am looking to leave" rather than " If I don't fill it it in they will think that we think that they are a company that does not care!"
Ask yourself this question. Which one sends a clear message to management?