There is also a diffrence between reactive dodging a skillshot and anticipating a skillshot and dodging based of that. Let's take Morgana Q for the reactive dodging example , the skillshot is slow enough to allow you to actually see it and move Out of the the skillshot by reacting to it properly. The "predicting a skillshot" way of dodging Is when you sidestep before the skillshot begins to fly at you (and most players dodge like that, by just clicking in a random direction when they see a startup animation of the enemies skillshots (Thresh hook is a good example for this) People react the second they see the animation of you swinging that hook. And as a thresh main , you use that habbit to hook them exactly where they try to sidestep your skillshot.
ok so what we really learnt from that video: katlife has a habit of dodging upwards and can be outplayed by that. further notice: noobs shoot straight pros shoot slightly tilted to the direction the enemy has a habit to dodge into
There wasn't any explanation of you positioning at a distance where you can react to the skillshot and then either keep moving towards a direction or juke it. Which is what actually made you dodge the skillshot. Instead there was this convoluted explanation of practically nothing. If you're standing right next to the yasuo, the entire video is useless.
Actually You can't teach people to dodge You can teach people about abilities hitbox but after that if you can dodge you can if you can't it's just not in you my friend