The main "physics" problem was the "million+ pound train" being derailed by a 3500lb truck .....but you are right in your premiss about movies not (generally) being about reality or full plausibility. Flight is no exception. If you have a problem with suspended belief in Flight then how do you watch ANY film, because of noise/explosions in space, never reloading guns, no need for sleep/eating/restroom, wounds that heal in hours, cars that fly 100's of feet in the air and still drive,.......?
I get what you're saying, but I don't sit in the theater and think "That could never happen!!!" I just don't, I accept it, and it's more fun that way.
Please list a few of these films "that are meant to have a basis in reality" that don't contain any plot holes, exaggerations, embellishments or illusions of truth. Even films based on actual events (Pear Harbor, Battle of the Bulge, World Trade Center, The Longest Day, The Great Raid...) or real people (Amadeus, The Aviator, Paton, The King's Speech, Forrest Gump ...) take liberties for the purposes of entertainment. Flight is not about an actual event or person and is meant to be ONLY for entertainment.