That a rule-based system is able to outperform a generalist model on a highly-specialized task is not exactly surprising. What is missing from the discussion (

That a rule-based system is able to outperform a generalist model on a highly-specialized task is not exactly surprising. What is missing from the discussion (and this is no fault of the paper—this isn’t their focus) is how much cost and effort goes into building the specialist system, vs. using a generalist model.