MapleSEA Episode 2 Aran Trailer

How are Arans overpowered? Their damage is divided between every mob they hit. It's really annoying to be honest. And that hole ''hit 12 monsters with normal attack'' doesn't seem to be true either cause with my first attack I could only hit 3, double attack seemed to hit 6, and triple swing finally seemed to hit 12(and let me tell you, the damage was like 700 700 500 300 200 100 miss miss miss miss).