It will be interesting to see the reaction of some prominent groups on this.
People who receive Communion while living in sin couln't care less what the Church teaches. In their minds THEY are the church, and therefore a law unto themselves.
St. Paul asserts, in I Cor. 11, that there are consequences to abusing communion. "For this cause many are sick among you, and some sleep (are dead)." Faithful pastors warn their flock about the dangers of taking liberties with God. (BTW -- I'm protestant).