While this is true, it is pretty much irrelevant for most shooting, long range included.
In fat, coreolis is much more complicated, who shoots in a cardinal direction? Imagine the offset if you shoot at say, 37 deg magnetic at a latitude of 42 deg?
Also, one must include more apparent ballistic influences such as spin drift, aerodynamic jump and precession, manges effect etc.
That’s why one shot hits at unknown distance on field fire ranges seldom result in one shot hits past 600 yard or so. ( unless the target is a barn door).
600 yard one shot hits aren’t that hard. Somewhere around 850 is where it starts to be difficult.
The various long range shooting apps do have a correction for coriolis effect, so it exists. Wind is a far greater factor.