I took time to look at the questions for baptism and nowhere is disfellowshipping and the consequences properly discussed. When I was baptised it was a very general discussion talking about immorality and I could never imagine being in that position. So when a person makes the decision to be baptised the full implications and penalties should they change their mind are hidden from them.
At the other end when the elders remonstrated with us over Facebookand JWN posts they never repeatedly explained the consequences. It was all top level and implications rather than specifics.
In fact the doctrine on how to treat DF'd ones changes over time and is not fixed so how can anyone know how they will be treated from one year to the next.
The person to be DF'd is no longer accepted as part of the congregation so their thoughts and feelings on the matter are considered irrelevent. It would only be necessary to show compassion if a JW felt there was an obligation to do so and currently there is not.
The JW is trying to justify bad behaviour by making it all about the other person. The truth is she has a choice.