I've seen the movie. It is the best--and most realistic--"first contact" movie I've ever seen. I have nits to pick with some of the details, but they're minor

I've seen the movie. It is the best--and most realistic--"first contact" movie I've ever seen. I have nits to pick with some of the details, but they're minor. You're specific complaint is a valid one, but is (I believe) satisfactorily explained in the movie.