Shivan
Terrarian
There have been complaints about worldgen oddities. I think they're inevitable, or nearly so, given the vast possibilities for conflict between various structures.
Imagine how much more difficult the worldgen's task would be if it had to squeeze in dungeon, oceans, Lihzahrd Temple, and both crimson and corruption. I think we'd see a lot more broken features, dungeons with the entrance filled with blocks, impossible temples, and so on.
Yeah, but lets say that is not a priority, having both on expert mode maps at wolrd generation whould be good at the long run, maybe having one at the left and one at the right instead of those cases of the same one on both left and right.
The main concern to me is behing unable to get the seeds whiout world jumping, fishing was added as a way to avoid having to do wolrd jumping for items, it puzzles me that we still have to do wolrd jumping to get either corruption or crimson seeds, there is a real reason not to allow that? i dont see the harm in it.