Not playing devil’s advocate as I fully agree that archivist rep is dumb, korthia is a subpar zone that uses the horrid daily system and none of this should be happening to us.
However, I wouldn’t use Legion’s paragon cache rates as a comparison to SL. SL paragon rates seem far more friendly for the big ticket items. I don’t think I’ve gone past 10 on any rep and I don’t think it’s just RNG on my side.