Do you not think that this would already have been discussed when the policy under discussion was first developed? The rationale for the policy - whatever it is

Do you not think that this would already have been discussed when the policy under discussion was first developed? The rationale for the policy - whatever it is - would have been determined well before this problem arose. There would be no need for these people, who would have been central to those policies, to rehash their reasons in these emails. They already know all the arguments.