To be less inflamatory, using callbacks to specify those low level APIs certainly makes sense, since the main desire here is to make them simple and interoperab

To be less inflamatory, using callbacks to specify those low level APIs certainly makes sense, since the main desire here is to make them simple and interoperable, not necessarily human friendly. You can then layer your favourite libraries or tools on top of that to make things better to live with. (For example, a promise-based wrapper for the low level libs or a compiles-to-js dialect) I do agree that all those posts with people writing callback-based code as though it were the future were kind of sad though.