[Solved] Piping into constructors

From what I remember of the explanation, it wasn’t even for performance. In fact, it existed in OCaml’s predecessor, caml-light. The feature simply didn’t seem useful enough to the designers to include it in OCaml, which in retrospect seems really odd. Not only that, it’s near-impossible to insert this feature in a backwards-compatible way, which means OCaml is most likely never going to have it.