In Krav Maga the direct linear approach of front and side kicks is tactically the safest one to use as they are the most efficient ones from maximum distance and as you close the gap Hand Strikes including straight and circular attacks are more efficient in faster reach into the pressure points.
However, since the various martial arts had devised pressure points approach with feet from any angle and distance and people are learning it and trying it on their own, it was decided to teach all the other most efficient methods of approach with feet to human pressure points so Krav Maga students would have a challenging training partners to comfortably block and counter attack them when needed.
It takes about one hour in the original IDF Curriculum to teach all the other kicks for that purpose! You then rehearse them later on in follow up lesson. Rehearsal is much faster when students already went through the previous process of corrections. In the video below you can see how it’s done in about an hour: KRAV MAGA OTHER KICKS COMPLETE ONE HOUR VIDEO LESSON