The guild boss revamp was well recieved, the rewards are actually worth it now.
But noone wants to go to Omar Lava Cave or Cultists and kill mobs that were meant for multiple years ago.
Nor do they want to constantly watch the guild mission feed for the boss subjugation scroll piece that extact;y matches your guild size. The event mission were great, and 5k mobs could be a shared guild activity that could be carried out by anyone at popular grind spots.
Either bring those missions back permanently, or make new missions for mudster/ferrid that have updated targets for today's game.