Neither the binding and loosing function and power nor the use of the keys to the kingdom was unique to Peter's authority, nor flowed from him (as per Rome). The use of the keys to the kingdom was the gospel, which Peter first preached to the Jews, as providing for forgiveness and regeneration by faith in the crucified and risen righteous Lord Jesus, was exercised by Peter before he was given the revelation of Acts 10 (which Paul received independent of Peter).
You are flailing - I can tell that you have never heard any of this before. You have not thought it through, you have not studied it, and are operating by the seat of your pants.
I never said it was "as per Rome", and I resent that you imply that I am defending Rome. Hardly! The "keys" of Mt.16.19 were given to Peter alone as I illustrated in post #169, for a specific application (Rome claims it was universal and forever). The Church would have gone nowhere if the leaders were stoned to death for opposing the Law, which would have definitely happened the first time that they opposed it. Christ would have died for nothing! The Church had no choice other than to start out as a sect of Judaism until Ac.15, keeping the Old Covenant Law as any Jews did (despite that this directly contradicts the gospel). The disciples actually believed that this was right and proper at the time. In the beginning not one even imagined that Gentiles would be admitted into the Church without becoming Jews, because they all believed that Christ died only for Israel. Peter was the leader of the Church when they adopted this policy of keeping the Law in Ac.1, and was the deciding voice in abandoning the Law in Ac.15. Neither of these occurrences could have happened without God's sanction. God did this by giving Peter the "keys" to bind and loose the Law - both one-time events.