It's more like: At 18 someone does a s---- looking Armbar, with no proper flow in the story of the match, while at 50 technical a worker does a proper Armbar, but does not possess the ability to make it fully fit into his style, flow of the match. It's not a bad looking Armbar, but it's not a great one either.
Same way someone with 10 brawling can't throw a proper punch. Being bad at doing a move does not mean someone might not try it.