Estate Cairn no longer says that it reduces/stops creature spawns in a radius (progression or build screen), and doesn't explain what "respite" means. The codex entry only says that it's a "safe area," not that it influences spawns or in what radius.
The description should be in the progression and build screens since that is where most people will be looking when they decide what to build, and it should be more detailed so that people know what it actually does and how to use it. This should include whether Estate Cairns must be active to provide the safe area, or whether may be inactive to provide the safe area but not act as a respite point.
