2 more fights after winning Miller is more than fair. Diaz retiring by defaults brings up Cerrone's stock.
It would buy him time to perhaps allow some other LW to dethrone Pettis. I don't think Cerrone can beat Pettis (and Benson); his ideal situation would be something like Meledenz grinds Pettis to a decision win so he can fight Melendez for title. Less chance of liver kicked.