Are DF, DA and apostates still shunned?
Actually this shunning policy has been cranked up even more so , certainly in comparison to lets say the 1960's and 70's.
After it was realized by many JWS that the WTS was lying about 1975, dissension was brewing within congregations, so in the early 1980's shunning of opposers or apostates took even more precedence by the WTS leaders.
Now with much of the corruption and lies purported by this religion openly available to the public on the inter-net, the WTS leaders are even more pressed to build a wall around its followers and to watch them closely with a magnifying glass.
The WTS has to have DFing structured within itself, all dubiously corrupt high controlling cults do and when its realized this organization was founded upon maliciously corrupt doctrines (1914), DFing will have stay in place, until it relinquishes those core doctrines and becomes more typical main stream Christian domination.