We really need to make sure we are talking about the same things. Quite often we get confused because someone uses a term differently.

From the quote you gave I assume that by "Kick Pleat" they really mean "Pleat Kick" This is where a pleat will stick out at an odd angle from the rest. It is most commonly seen at the right outer apron edge.

Under the outer apron right edge is the "Deep Pleat" and under the left edge of the under apron is the "Reverse Pleat" The Reverse Rleat should also be as deep as the Deep Pleat but because it reverses the direction of the pleats we give it a different name.

OK, "Pleat Kick" can be caused by; (in no particular order)
Improper or missing Steeking.
Fabric distortion.
Insufficiant or missing apron taper.
An ill fitting kilt, especially one that is too small in the hips.
Lower right strap cinched too tight.
Poor or inaccurate pressing when made or cleaned.

Kicking Pleats are often found on off the rack kilts. Any kiltmaker worth their salt will not release a kilt that the Pleats kick on.