I think that those students were asked to make the mannequin as realistic as possible.
Yes I agree too, the Art students has no responsibility to preserve the past. In fact i meant to explain who creates those beautiful wax mannequins. as you know we don't have kinda "Madam Tuso" museum in Iran thus we don't have any experienced artist for creating those mannequins so those young artists/students should be encouraged for their beautiful jobs, i believe!