It can't be that long a lens as the corridor is close to the west edge of the airport, so the distance is not great. Therefore how can the top of the runway (further away) be wider than the bottom (closer).
The top of the runway is not wider than the bottom. You think it is, because of an optical illusion.
If you measure the top and bottom width of the runway on your screen you will see that the top is less wide.
On my screen the bottom side of the runway covers 16,3 cm while the top measures 15,2 cm
Bart