All of the highlighted problems don't occur on the JP servers. Therefore as far as the devs concerned it could not possibly be a problem because it doesn't exist and so they won't be doing anything about it. Quesync abuse, the proliferation of the dogshit DRK/DRG meta, and so on, is symptomatic of American exceptionalism which is why NA and to an extent EU have been destroyed. What would happen if you "invaded" JP and engaged in this behaviour on their servers? Well they'd just ban you and they still wouldn't do anything about it you stupid gaijin.