I think the distinction is that looking up wikipedia or any other website that appears to have topics of information you can learn from is different from asking a tailored answer to your specific query.
One feels like more like research to improve your understanding, but you know you would have to go to a professional to ask specific questions around your circumstances.
And the other feels like your own 'personal professional' that answers all your little specific questions, but is really just a complex algorithm trying to make you happy and doesnt know if is telling you right or wrong, only that it shouldnt say it doesnt know.
A program that can be very confidently wrong while giving people advice that can mess up their life (healthcare, finiancial, legal advice, etc) could benefit some, but will ruin others make it not worth the risk?