Notebooks are a maintainability maze waiting to happen.
They're incredibly non-portable; they don't play nice with version control; I know how they're supposed to be used, but I'm yet to see them actually used in a way that isn't a breeding ground for the worst software engineering I've seen.
unnecessarily dismissive, grandstanding.. Bravado of the rejection, not supported at all
Rich-content Notebooks tell a story; well-worn Notebooks are a familiar context for experiment and viz.