While your point is taken, let's understand the cult member.
She is going to die. She feels good serving her God (the WTS) by doing this.
If she stayed at home, the dubs wouldn't criticize her, but her already-embedded
fears get her to do this. That is the ridiculous part you are pointing out.
She's probably heard the story about the "sister" in an iron-lung who continued
to "preach" to whomever would come near to her.