So Akali gets a gunblade and shes an invincible hyper carry?

What the hell even happened to make her so strong? Electrocute? I just got out of a game where the enemy team had 3 kills against us with like 23 kills. Akali got one kill, finished her gunblade and one shot our entire fed team? When she gets cc'd she just poofs into her little bubble and we're doomed. It was honestly disgusting. Happened yesterday too and idk how a team of 5 fed champs can be completely demolished by an akali in .2 seconds.