Oh I agree. Clear penalty, clever play by Boyd to nip in and draw the foul - the defender didn't react quickly enough to losing possession, and failed to withdraw from the attempted clearance. It's basically exactly what Ilewumo did to win a penalty at Cardiff.
It was as clear a penalty as the penalty Chris Ilewumo won for us in the play-off final. A clear mistake by the defender, and a spot kick all day long.