"people that have fun in PvE (i dont understand why they do)"

triggered

Yes and no. More radiant farming locations would be great if they weren't limited to certain missions. However, people playing and enjoying the arcade is the base that the game is built upon, and the fact that you need to run through there for radiants is a no-brainer. The slow radiant fire crystal progression system is, actually, pretty smart since it keeps players coming back to keep working on their gear. They're never quite "finished" with their gear, since they always have another thing to heat until the day they become content - and from that day forwards, crafting and new sudden gear will go much faster after they've accumulated many more resources.

Farming for radiants, however, is boring. That's pretty plain and simple - it's not fun to do it, and the best places to do it are too challenging for the exact people who need them most. I know the arcade exists for this purpose, but expanding the arcade to include an infinite arena in the core that drops items from all strata (flawed orbs up to eternals, cracked orbs up to radiant, shock vials to ultra shock vials) would be a nice addition for end-game players, and in general fun as you take on the game in an endless mode that engaging and entertaining as you never have to walk through corridors for loot - it's all just the good ol' fighting action.

More opportunities and locations for radiants is a better solution than making them drop more. Granted, having them drop at depth 24 and later would be great, or making shinings stop dropping at depth 27 and later would be a good fix too, but those address the immediate problem rather than the long-term problem.