Sometimes when you are doing something brand new you have to start somewhere and then build from that. I guess their starting place was just a bit different from where you would have picked as a starting place. For a first version I was pretty impressed with what they were able to get in. I did not expect it to be even this far along until Alpha 11.
If you don't mind I'll be lazy and redirect you to a few posts:
http://7daystodie.com/forums/showthread.php?15769-MOD-Creative-Builders-SuperTool1000-%28new-item-for-beginners%29
http://7daystodie.com/forums/showthread.php?14807-Changing-stone-stack-value-from-64
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