Not everyone enjoys reading documentation. We don't need to be defensive about this. We already have search that can trawl through a well maintained site.
AI can not only go through the documentation but also translate it to layman and point to the sources.
If it gives the wrong answer 1 in every thousand results, it is still undeniably useful. You shouldn't blindly trust AI is common place knowledge. And it's no different than doing a Google search for something and some times clicking into a result that is bad. The fact that that possibility exists doesn't change the fact google is "undeniably " useful.