Chat bots are annoying due to potential inconsistency, having to guess the types of things you ask for, due to their latency, but they've made major advancements recently, and we are only beginning to see what's possible.
If those companies using chat bots are failing to provide value, then they won't be competitive and they will go away. Why do we want to discourage them from exploring this new area? Experimentation is critical to understanding what will work and to the development of our society.