Bae has said the same, as well. The more subtle dance moves don't get caputured properly, so they have to do the more exagerated stuff. Basically, anyone good at dancing gets super nerfed because of the 3D.
Like, just comparing what Kiara has done to Keeki:
There seem to be a lot of smaller movements that just gets missed by the mocap. It feels like the 3D models are almost stiff, especially in the waist area, while IRL, you humans are a much larger range of motion than what is shown.