All of the changes were about disfellowshipping. (And the option of an appeal committee isn’t new either.)
But elders can still decide the person has disassociated. This is often considered to refer just to someone ‘writing a letter of disassociation’, but also includes if the elders decide the person has ‘disassociated themself by their actions’ (e.g., accepting blood, attending a rival church service, promoting political opinions). No right of appeal is available if the elders decide a person has disassociated.
As was skilfully pointed out by the lawyer during the Australian Royal Commission, a JW who simply ‘fades’ is still considered (by JWs) to be subject to JW rules, which can eventually result in shunning (though ‘soft shunning’ is often already in place at that point anyway) if elders learn of the person doing something egregious like unrepentantly celebrating Christmas or sharing opinions about JWs being wrong.