Well I hope you have a good idea 'cause in this example you can't jump on a platform (move up and move sideway). Once you jumped you have no choice but to fall. Because you can only move one direction at a time and falling wins over left and right.
Otherwise you would never fall by keeping your finger on left or right arrow. You can try by changing the order and put the fall event underneath the left and right (: (try it, it's fun you're floating \o/)