Not to the extent the wt practices it. Not to the extent that two people living in the same home are not supposed to speak to each other, and minor children are shunned at home at a time they really need their parents. Also, the bible lists about 5 things that warrant expulsion from the congregation, not the 40 things you can get disfellowshipped for as a Jw. For the record, I'm not dfd or da'd, but I do know the bible and I know what's listed in the elders' handbook as dfd offences.
Also, the bible says nothing about the dfd one having to write letters to the elders and having to come to the hall a year before being considered for reinstating, but it does say the prodigal son was welcomed back instantly while he was 'yet far off.'