I think the mission should have matchmaking available. This mission reminds me of the sunless cell back in destiny 1 we’re ya had to beat this other knights first and then quickly kill the boss to earn whatever exotic sword you were going after. If that mission can be match made why not this one?
Did this pretty easy tried it solo got to boss, then went in with a 2 others. I just posted 655+, no mic required and boom got over 20 requests. I mean I wouldn’t mind matchmaking and if I can still help people even after completing it then I will, wasn’t that hard just need to be aware you your surroundings, first time I killed the boss a little to fast XD and didn’t get completion.