Comment by stonemetal

I think you are correct, I don't think he means popular ideas are likely to be wrong. Just more likely to be misused or misapplied. As in the linked article, they received a lot of advice to use rails not because it was the right tool for the job but because it was the popular tool for a vaguely similar job. Also no one had the knowledge to comment on their selected tool because it wasn't the popular tool.