Yeah Prowse is an anomaly.
Even back to Becham's day, not many used to get scored. In a whole WC it might be one goal from a direct free kick. Then you'd get someone like Christiano come along and make it look easy, but it's been difficult for most people for decades.
I imagine someone can...
How many direct free kicks are scored in PL games on average? It's so low, it's not worth having a specialist in unless they're as good as the other players for the rest of the game.