Yeah.. You didn't know that?? They've got some of the best wavedashes in the game. Mila, Akira, Sarah, Pai, and Rig can all wavedash in the 1.02 version.
Well no wonder you didn't know. Yeah, the patch will remove the wavedash ability. And it's not like it matters all that much. You can just backdash constantly and be fine.
Every character can backdash consistantly and get away quickly. It just depends on how fast your fingers can move. Rig will always have the back dash as will everyone else. But Rig, Mila, Akira, Pai, and Sarah all have wavedashes in the 1.02 version. They're quite handy. But not that big of a deal.