Scotland too strong in the set piece and Japan's red zone defence was not good enough. Too easy for Scotland to score when they got close to the tryline.
Overall Scotland have won 3 games, but not sure they've improved massively though, especially in attack. They look scrappy rather than coordinated tbh.
Considering that this is their first period of sustained rugby and the improvement they've made, Japan have done well, let's hope they can build back to the heights of 2019.