Really? Better how? This is supposed to be an essentials alternative not an essentials clone. Do not follow what they do as an example of what to do. Essentials is a monstrosity that should not have been created in the first place. Their decision to split it up is a result of the push back they have been getting form the bukkit plugin community. There is no good reason why DefaultCommands should be split in the same fashion, it is just adding overhead where none is needed.