Wasn't there a massive scandal with body parts being taken and kept by the NHS and the Police(?) without permission. I remember parents having to have several funerals because bits from their dead children kept turning up. There's a drive now to repatriate the remains of indigenous people taken for museums and collections.
But, what she's done is perfectly fine, possibly stunning and/or brave.
As for the artwork itself. Transpeople are hollow, fragile, inward looking masks are they?