If you’re packing endgame items, you’ve probably already conquered most of the campaign’s challenges, so I’m not sure how endgame balancing is having a particularly meaningful impact on the campaign.
I can name a long list of minor qol tweaks we could make until the end of time, but that is what they are, minor. They’re not going to have a substantial impact on everyone’s enjoyment of the game and our programming resources are best focused on addressing bugs and our future work.