Works great for me, been doing this for awhile. This gives you 592 glimmer each run with axiomatic beads(200 glimmer each) by killing yellow bar enemies besides the gatekeeper(only yellow bar enemies drops glimmer) This method gives you slightly more glimmer per run then the exclusion zone, can be done 2x faster using 6 people, consumables appear to drop more often, and you don't have to worry about not killing the last enemy. make sure your close enough to each other so you share glimmer. The spot just inside the doorway ensures that and also brings most of the yellow bar enemies closer so when you collect axiomatic beads/blue polyphage, they will be bunched together making them easier to find. You also get weapon/armor XP here as well. Let me know of this works for any of you