Intelligence doesnt mean said entity knows it all.
Even the most intelligent person on earth has no chance of knowing what my favourite ice cream flavour is.
Its the same for AI or even a purely human team, without communication with precise details they cannot know the exact objective that a stakeholder wants. If the stakeholder cannot communicate those wishes things will be broken.
THis is the problem, you dont appreciate that intelligence cannot know localized details which are often a unique combination.
Not eveyrone is the same, we all have our quirks and personal differences. The same is true of many many other business problems.