Excommunication will never happen.
The article is not about excommunication.
What it points out is that it is a mortal sin to give Communion to pro-abortion people. Yet, most bishops have instructed their priests to give Communion to pro-abortion politicians.
But it should, and you know it.
The purpose of good church discipline is to lead the disobedient to repentance and reconciliation. When the loss of communion doesn't work, excommunication may. After all, we don't need to be PROMOTING HOMOSEXUALITY AND ABORTION IN THE CHURCH DO WE?