The opposing position reasons that divine wisdom demands a distinction in the outcomes of the righteous and the wicked. If no difference were possible, the significance of reward and punishment would appear undermined; some therefore regard the forgiveness of shirk as rationally inconceivable.
The reply notes that differences can be realized in more than one way: degree of punishment, level of reward, deprivation of a blessing, or other consequences. Merely invoking wisdom therefore does not entail the rational necessity of one particular punishment.
This debate evaluates an argument; it does not unsettle the final ruling established through revelation.