If someone gave JBox2D the same amount of attention box2d.js got to win this benchmark, I suggest that the results would look different. Correct me if I'm wrong

If someone gave JBox2D the same amount of attention box2d.js got to win this benchmark, I suggest that the results would look different. Correct me if I'm wrong, but it seems like box2d.js was made and optimized just prior to this benchmark, while JBox2D is an old project that was never meant to win any benchmarks.