Also the attacks on the brothers by Joseph get rid of the feeling of forgiveness that Joseph shows in the Tanach. Especially:
"Judah: "The fire that burned Shechem is rekindled within me." Joseph: "It is rather the fire you unjustly intended for Tamar your daughter-in-law, and I will quench it.""This turns Judah's previous high moment of admiting his error into a negative attack. Reads like a political attack not a discussion among brothers reaching for joint forgiveness. Maybe someone else can show me the redeeming social value for this Midrash but I just can't see it.