Were these skill "trees" the output of an LLM or something? Of the domains I have a lot of familiarity with, the ordering (if it can even be assumed the easy on

Were these skill "trees" the output of an LLM or something? Of the domains I have a lot of familiarity with, the ordering (if it can even be assumed the easy ones are at the bottom and the hard ones at the top) make little sense. I think if I were a newbie in any of these subjects and followed the "trees" as presented I would be quickly discouraged and lost.