I understand it differently.
Certainly there are many warnings about partaking of sin once one is born again.
This section talks about how it is impossible to be born again after being born again. It is impossible to renew such a person in the manner in which they were brought into salvation. Now that they are a child of God they will face correction, punishment, or even excommunication with the intent to produce godly sorrow so that they might confess their sins and turn from their ways.
Furthermore, no man may crucify the Lord for themselves. It is impossible. And no man may bring shame upon the Lord. That is also impossible. The believer caught in sin, if he repents, is not AGAIN born of the spirit. But because he is born of the Spirit and of the house of God, he will face the correction that God brings to him; first through the saints and lastly by His own hand. It is always best to heed the word of correction spoken by the elders than to have the Lord intervene directly.