Every group has made mistakes, and the Witnesses corrected course and stopped setting dates. Why hold old errors against them now?

Correcting course is to their credit, and no one should mock sincere people who were misled. The reason it still matters is the specific claim the organization makes about itself, that it is God’s channel of truth and members must accept its direction. Ordinary human error is forgivable. Repeated confident predictions in the name of divine guidance, followed by reinterpretation rather than repentance, speak to whether that central claim holds. The question is fair because the organization raised the stakes itself.