Still happens all the time in certain finance tasks (eg trying to predict stock prices), but I'm not sure how long that will hold. As for why that might be, I don't think I can do any better than linking to this comment about a comment about your question: <https://news.ycombinator.com/item?id=45306256>.

I suspect that locating the referenced comment would require a semantic search system that incorporates "fancy models with complex decision boundaries". A human applying simple heuristics could use that system to find the comment.

In the "Dictionary of Heuristic" chapter, Polya's "How to Solve it" says this: *The feeling that harmonious simple order cannot be deceitful guides the discover in both in mathematical and in other sciences, and is expressed by the Latin saying simplex sigillum veri (simplicity is the seal of truth).*