You will likely poopoo that as you did in an earlier thread. But it is as valid a means to understand the binding and loosing as your fancy shmancy institutional explanation. It is ONLY meant to explain the concept of binding and loosing. Rope door-latches don't need keys and Peter was given 'the keys'.
I am in agreement that Peter the man was given the keys to open and close heavenly doorways. John saw one of the doors as he explained in Rev 4:1. Peter opened the doorway to the New Covenant established by Jesus with the Cross and resurrection and His blood on the altar poured out for us and spread on the Mercy Seat above the laws of sin and death. BTW, the New Covenant is not the cup or blood int he cup, it is God's Life in you, the hope of Glory.
This explanation would be laughed off by entry level theologians.