Speaking to DF'd people in some minor way has been something the Organization has gone back and forth on a few times.
Titch quoted a 1974 Watchtower ...
... if you happened to see a d-fed person who had some car problems, while they were driving to the local K.H., you shouldn't hesitate to stop and help them.
I remember a Circuit Overseer asking that exact question in one of his talks, but his answer was different. What did he say? 'Someone else will be along to help that person.'
I don't remember the year but it was well after 1974, so they had hardened again on talking to or helping a DF'd person - it could have been related to the issues with Ray Franz.