So I just noticed that scaling mesh also scales the magnitude of displacement on tessellated object. With UV mapped object that is correct but I am also using triplannar so entire point for all textures is to remain static in size while object scales. Some checkbox in material property override would do just fine. That way I could disable it in some material instances that are used with triplannar mapping.
To be precise, the number of course stays the same its just that visual strength of tessellation increases with object scaling and it something that I do not want for world aligned texturing. Sure I can always create second material and set value there for scaled up diplicated rock but that is a waste. Tickbox in material settings would be nice if possible.