It doesn't knockdown, correct?
Nope, but on hit it leads to a standing reset situation at +2 for you. In that pause few people are yet able to see a throw coming. And for those that do shimmy exists.
So for now I use it like a crappy Spinning mixer.
Keeps people who like to space themselves at certain distances on their toes since just outside sweep range may no longer be such a great spot for whiff punishment/reaction when I can suddenly put a hitbox right in that area.
It also provides an option against Nashes that like to mixup dash, bazooka knee, sobat and heavy normals at predictable timings
And I guess with the pinwheel she potentially becomes Nashlike. People watching for the pinwheel can't react to a dash/walk up as well and vice versa.