They know they shun totally. They know it looks bad. They lie. Call it "theocraptic warfare", they lie.
This is a great example of the way Watchtower Corporation muddied the waters and weasels around things. It's like how a person is automatically disassociated for doing certain things instead of being disfellowshipped because to DF them for those actions (taking blood, military service) would look bad on them. It's all about keeping up appearances with them and the culture they create through talks and such is often just different enough from the written word because they know what to put in writing and what to then tell you in person.
These things show that they are manipulative and not to be trusted.