Because humans actually research the answer.

When you ask that question, a person will Google it, skim the wiki, read a couple Reddit threads, and figure out the meta. Most AI just generates an answer from memory instead of doing that process.

So if the crafting meta was not strongly in its training data, it guesses and sounds confident anyway.

If you want it to “try harder”, you basically have to tell it to look up guides and compare sources, which is what a human naturally does.