So we found out while waiting for a sixth person at the Gatekeepers that it is a pretty great glimmer farm especially if you have a large group. You'll need at least 3 people to open the door but with Blue Polyphage and the ~20 "major" enemies you can very quickly build your bank back to 25K. For every 20 you kill you get 740 glimmer. We were playing on hard but I believe that they are majors on normal also.
Never seemed relevant but if your Iron Banner group is low on funds it may be a good option.
Good Luck!
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False. You dot get glimmer in the VOG. It had to do with the lore, something about it not being actual reality and being a Vex generated reality different from our timeline/reality. Think of it as a different dimension.