That's too simplistic.
God gave specific truths to the Jews, for the Jews to follow. Those truths are there for us to learn, but not to follow.
God gave specific truths to individuals, which He does not expect other individuals to follow. Again, God intends us to learn from all Scripture, but not necessarily to follow it.
God gave specific truths to the Church, which He did not expect ancient Jews to follow... indeed, they couldn't because they did not have God's Spirit.
I think it is important to understand that God never gives instructions or truths to one group of people, God always, I feel certain, sees people as his creation. When he told Israel to be circumcised the nations could follow those instructions, and belong to the one true God.
When Christ came, Christ took away the fleshly commands given in the OT as a guide to the spirit of the law. and now spoke directly to our spirits.
The gentiles of the OT did not accept a word of the instructions to the Jews, so when God took away the commands that were to the flesh, it worked out that if you believe God acts differently to Jews than to gentiles, it results in the same thing. Not anything big.