But why is a manager or customer going to spend their valuable time baby sitting an LLM until it gets it right, when they can pay an engineer to do it for them? The engineer is likely to have gained expertise prompting AIs and checking their results.

This is what people never understand about no coding solutions. There is still a process that takes time to develop things, and you will inevitably have people become experts at that process who can be paid to do it much better and quicker than the average person.