I always felt something of this weapon is awkward/off. And I know what it is clearly.
It was the speed of first two light attacks swing.
If you can’t notice, see those in 3rd person.
Anyway, the 1st light attack is a bit slow. And 2nd light attack is awkwardly more slow.
So, I think the animation of 1st and 2nd swings are should be fast as 3rd light attack, or its push attack.