I have no idea how to do it, or if it'll even work.
Adding the "#mob_grinding_utils:no_dirt_spawn" to the mobs we don't want spawning on dreadful dirt might work. Worth testing that. I'm working to the assumption that if it does work, it would apply to anything hostile for dreadful dirt, or anything passive for blessed dirt spawns
I have no idea how to do it, or if it'll even work.
Adding the "#mob_grinding_utils:no_dirt_spawn" to the mobs we don't want spawning on dreadful dirt might work. Worth testing that. I'm working to the assumption that if it does work, it would apply to anything hostile for dreadful dirt, or anything passive for blessed dirt spawns