Yeah it seems strange as Paul had just come from Jerusalem and this letter was sent out.
Act 15:23 And they wrote these things by their hand: The apostles and elders and brothers send greeting to the brothers, from the nations in Antioch and Syria and Cilicia.
Act 15:24 Because we have heard that certain ones who went out from us have troubled you with words, unsettling your souls, saying, Be circumcised and keep the law! (to whom we gave no such command);
Act 15:25 it seemed good to us, being assembled with one accord, to send chosen men to you with our beloved Barnabas and Paul,
Act 15:26 men who have given up their lives for the name of our Lord Jesus Christ.
Act 15:27 Therefore we have sent Judas and Silas, who will also announce to you the same things by word.
Act 15:28 For it seemed good to the Holy Spirit and to us to lay on you no greater burden than these necessary things:
Act 15:29 that you abstain from meats offered to idols, and from blood, and from things strangled, and from fornication; from which, if you keep yourselves, you shall do well. Be prospered.
I guess it was being politically correct. Paul speaks of;
1Co 9:20 And to the Jews I became as a Jew, so that I might gain the Jews. To those who are under the Law, I became as under the Law, so that I might gain those who are under the Law.
1Co 9:21 To those who are outside Law, I became as outside Law (not being outside law to God, but under the Law to Christ), so that I might gain those who are outside Law.
1Co 9:22 To the weak I became as the weak, so that I might gain the weak. I am made all things to all men, so that I might by all means save some.