Archaic by the sense of some people really want to replace it with something new, which will be as groundbreaking as structured programming was. While functional programming has its merits, it’s not the catch-all solution as its evangelists claim. It’s more of a tech hype around a pretty useful paradigm, but unfortunately people want to use it like a Swiss-army knife, while it’s more like a hammer or a screwdriver. I personally prefer multi-paradigm programming languages like D.