I think I understand what you mean. Is it that he could use professional vocabulary, go into some topics a little deeper? Andrzej Sapkowski (author of The Witcher) is sometimes accused of similar things, that he also oversimplifies certain issues. I will say this, there is nothing wrong with that as long as the author did the research and presented it in a way that at least makes theoretical sense. In the sense that such a situation could occur in this type of scenario.
Such people who have extensive knowledge of various topics, although they usually do not reach sensible and large conclusions (because these are much more complex, in which knowledge has a huge significance, and having it at a superficial level, you can make stupid mistakes), but they can notice things that most people will not pay attention to or ignore as unimportant. Despite the fact that they also have some significance or are quite an important cog in a large machine.