WazirX's legal advisers said some days ago that it isn't possible for customers to get 100% of their funds back, something i already know though, and that the best-case scenario is creditors getting 55%-57% of their funds back. I don't even know if they will get that much and even if they will, when.
It must be hard for the creditors to see that the hacker has started moving 'their' funds through tornado cash to obfuscate the origin of the coins. WazirX are in a tight spot right now and they have to make a decision quickly.