The OLD LAW ended when the Christ declared, "It is finished........." Again...........with the contortions? What does compel mean? Peter was compelling the Gentiles to live as do the JEWS (Gal. 2:14) You are interpretating things not recorded as if your opinion was book, chapter and verse.Um, for the Jewish converts, as long as the temple was standing, the old law was still in effect. That wasn't the false message that Peter was spreading.
You are suggesting that PETER was ignorant, when He was given the keys to the kingdom of God. You missed the first gospel sermon preached by Peter in Acts 2? Peter informed the JEWS exactly what was required of them to be included in the church that Christ built as the chief cornerstone......and there were no OLD TESTMENT laws to follow.