OK I'll be a little controversial here.
I'm all for maximum detail, including opening doors and highly realistic ground objects.
Agreed it has no bearing on the flight characteristics (with the exception of opening doors which may impact airflow and therefore aerodynamics) but it does have a direct impact on immersion.
The fact that these details are a boon to movie makers is secondary, and may or may not be the intention of 1C:Maddox.
To look out of one's cockpit and see a realistic landscape, swoop down and shoot the crap out of a moving ground object such as a tank or train, and see a well made damage model display the effect of your gun burst, has got to be a trip.
Putting a burst into an aircraft and seeing a door drop open, knowing that that tells you a). your aim was good and . the aircraft you hit will now perform differently has also got to be a trip.
And knowing that 1C:Maddox will put the same level of attention to detail in the flight model is good, take their time on release I say. It's worth the wait.
And yes I'm also looking forward to seeing what the Machinima gang produce with it