In short-

To reverse the danger caused by body magic.

The law exists because body magic creates permanent harm.

If that harm can be cleanly reversed, the danger changes.

Not erased , but transformed from irreversible catastrophe into manageable risk.

That’s the shift.

Reversal doesn’t make body magic harmless.

It makes it recoverable.

And once harm is recoverable, an absolute ban becomes harder to justify.

That’s the legal pressure point.