User blog comment:NeonSpotlight/NeonSpotlight's anniversary AMA/@comment-31518991-20170314161033/@comment-3391671-20170321085924

I can only presume two things: Kietkun is question why they had chosen for it to be a cast-recast ability in the first place. Second, he is asking why it cannot do the knock-up only now, since it's now forced to push the enemy in a direction with the vector-targeting implementation.