We need not grieve over those we lose if cloning them can replace them. Those who perpetuate their pets in this way may avoid having to grieve over their loss. The illusion of deathlessness is the logical outcome of the preposterous elevation of the secondary to the primary. Realistically, each of us is inviolable, unrepeatable, and irreplaceable. This does not make life tragic as much as it means that loved ones are precious.
Technology can only do so much.
It cannot reverse the metaphysical order of things. It cannot remove the need to love and be loved. It cannot fabricate a world in which people are merely images and death is only a distant memory. But technology can tempt us to believe in illusions. Exterminative technology does not exterminate the problem, it exterminates the person.