im not dissing brazil crowd but it would be more hype if there was a neutral crowd in the finals (japan is not going to finals anyway), so its better since there is more cheer for both teams!!
is there another event being placed in a country/region where the team from the country wont make it far?? no. if it was korea, drx will make it far so the crowd will bias for them, if it was anywhere in europe, they will win and crowd would be bias, if it was in america, na crowd is bias. if it is in japan, the teams from japan wont make it that far so the finals of the crowd will be more balanced.