I found the following paragraphs from the same WT article (called "Maintaining a Balanced Viewpoint Toward Disfellowshiped Ones", as worded in the "Watchtower Library 1999" CD-ROM) as very interesting. Time sure has changed regarding the WT's stated view on disfellowshiping.
"7 If we imitate our heavenly Father we will remember that he even showed certain considerateness toward the first human pair after their disfellowshiping in Eden, providing them with clothing. (Gen. 3:21) This was an undeserved kindness toward them. As Jesus reminded his disciples, Jehovah God "makes his sun rise upon wicked people and good and makes it rain upon righteous people and unrighteous." (Matt. 5:45) The apostle Paul showed that, despite the independent course the Gentile nations took contrary to God's way, Jehovah "did not leave himself without witness in that he did good, giving [them] rains from heaven and fruitful seasons, filling [their] hearts to the full with food and good cheer." (Acts 14:16, 17) So, not "mixing in company" with a person, or treating such one as "a man of the nations," does not prevent us from being decent, courteous, considerate and humane."
"21 As to disfellowshiped family members (not minor sons or daughters) living outside the home, each family must decide to what extent they will have association with such ones. This is not something that the congregational elders can decide for them. What the elders are concerned with is that "leaven" is not reintroduced into the congregation through spiritual fellowshiping with those who had to be removed as such "leaven." Thus, if a disfellowshiped parent goes to visit a son or daughter or to see grandchildren and is allowed to enter the Christian home, this is not the concern of the elders. Such a one has a natural right to visit his blood relatives and his offspring. Similarly, when sons or daughters render honor to a parent, though disfellowshiped, by calling to see how such a one's physical health is or what needs he or she may have, this act in itself is not a spiritual fellowshiping."
"22 In some cases where a disfellowshiped parent is aged or in bad health and needs care, the son or daughter might feel it advisable to bring such a parent into the home to fulfill proper filial obligations. So, too, Christian parents of a disfellowshiped son or daughter who is no longer a minor might decide to take such a one back into the home due to that one's having a grave health problem or having been incapacitated in an accident or being in a destitute state financially. These are humanitarian decisions that Christian families must make and the congregational elders are not required to intervene where there is no sound evidence of a reintroduction of a corrupting influence within the congregation."