Yeah it's true there are other games with server transfer, reason though I specified survival is a game like Rust Ark conan etc, there is usually a lot more attached to each character than other types of games, things like tames/followers, structures ownership permissions, potentially resources, levels and stats along with engrams and stuff like that. If you think about it there is a whole bunch of in game assets and values linked to each character, guess kinda makes sense that there is so much room for something to go wrong with all that information and result in a potentially corrupted character.