1:51 yea your side kick reminds more of a back kick. Main problem with that kind of side/back kick is that after the kick you leave yourself to a vulnerable position if you dont knock out your enemy. Kicking side kick ex. karate/TKD gets you to better position after the kick and also leaves you possibility to change your side kick ex. roundhouse kick which is impossible in side/back kick. Yea I know Krav Maga is not about doing things technically "perfectly", just gave my two sents, no pun intended, used to train Maga myself for years and its definitely faster way to learn to defend yourself than most martials arts.
