Foolish strawman!
The Jerusalem's chief conclusion, and the heart of Acts 15,
verse 21:
"For Moses of old time hath in every city them that preach him, being read in the synagogues every sabbath day."
They went easy on the new converts because they expected them to be in the synagogue every Sabbath day, hearing Moses books preached, thus learning how to follow the Way of Yeshua.
False and presumptive interpretation. Read the full text.