The same individual means numerical identity, not merely a second individual of the same kind. Two visually identical books may belong to the same type while remaining two distinct objects.
The resurrection claim is not only that Allah can create a human being identical in appearance to someone who died. It concerns the restoration of that very person. This is why original bodily constituents and the soul's relation to the body matter.
Age, health, and outward qualities can change without destroying personal identity. An account of resurrection must nevertheless explain why restoration is not reduced to mere resemblance.