Delubrum was already mostly a pf things during ShB particularly after they increased the rewards, it was a nice way to farm relics when you could do it in 15min, and during that time you could find 10+pf during peak hours.

But Bozja himself got extremely criticized during those patch, it's only because it was the new content with relics that it got a lot of people in it (and it was better than eureka for casual to jump in and out regularly). It's recent success is not even comparable to player activity during release but people in it now likes it better than the one during release.