Advanced Ritual Site Studies

I just handed in "Advanced Ritual Site Studies: Week 4 of 6"

Maybe I'm thick, but I'm struggling to see the 'reward' element of this.
And all for one Nebulous Voidcore?

I accept that alt's bringing up the rear will benefit from rolling on Myth gear in M10's.
But we have Decimus giving us 2 rolls a week (bought with Marl) and a possible 3rd if you take the coins in the vault.

SIX weeks of running these Ritual sites for x1 Voidcore?
Way too much effort imo.

Then I hear you all cry "But dude, there's an achievement associated with running a R6 site with the prescribed affixes active".
Well I soloed a R6+8 on day one with my dudu main. Plus I daresay that 3 to 4 guys in group wouldn't struggle to achieve the same thing.
So the "achievement element broken down across 6 weeks seem awfully redundant and chronically poor use of time.

My two cents worth.

by time you get those cores they are useless lmao

its 2 cores at the end of all weeks. but i agree that its the dumbest questline and achievement maybe ever. all of this so they force us to play their stupid ritual sites and justify having a subscription