I had a Navigation teacher from the Air Force who was considered the expert of the experts. He used to say:
"When you have applied a wind correction angle you have also allowed for Coriolis" because the wind direction and speed was determined by Coriolis effect and the airplane is "inside" the wind.
He added that, unlike the artillery guys, pilots did not need to allow for Coriolis. Maybe he just wanted us to stop making questions on that matter...
Maybe it has to do with time? A shell from a gun gets from A to B in a very short time, and moves real fast. Let's suppose that the air mass within which it moves has not the time required to make the shell drift as it would make it if it remained a longer time in the air. Airplanes, however, stay in the air for hours so they are drifted (and "Coriolisized") by the wind.
What do you think?