I think this article is generally insightful, but I don't think the author really knows if they one shotted the excel to python transformation or not. Maybe the

I think this article is generally insightful, but I don't think the author really knows if they one shotted the excel to python transformation or not. Maybe they elided an extensive testing phase, but otherwise big bugs could be lurking. Maybe it's not a big deal, or maybe it's a compliance model with severe financial penalties for non-compliance. I just personally don't kind these tradeoffs going implicit.