Hollywood is all about satisfying people's expectations. The villain dies, the good guy saves the day and gets the pretty girl, the monster eats everything but gets killed eventually, the nerds builds the day-saving-device, the FWD car drifts through every corner. And the helicopter explodes with actors hanging on both skids, usually shortly after tail rotor malfunction accompanied with heavy smoke from the MGB area.
Upside of the movie helicopter: During it's extremely limited life cycle it is far superior to the real thing in pretty much every aspect.