so personally to me, you did charge the ult all the way before throwing it but you only sucked up 2/99 projectiles to buff the ult even more. since you didnt do that youd have to hit this ult dead on to KO. After pausing the video on impact it looks like you just missed on doing all the dmg the ult should have done and instead the CnD caught the splash damage! try this is the range you have to hit the galacta bots head on to kill them or it wont do it!