Ahh so all the other parties involved weren’t aware of the temperature and the ice?
Experience I have had that in situations like that, a group is responsible for a system and others will not override them.
“I guess it is OK, the designer bought off on the decision.”
I am sure they were aware but the knowledge was concentrated at Morton Thiokol and the decision that the boosters were ready to GO was from Morton Thioklol so the developer/designer of the shuttle tiles will not override the designer of the booster.