In minecraft you create a 3x3 crafting table to craft more items. Its clear that without them the game wouldnt be the same and really are key to survival. They make nearly everything in the game like swords and pickaxes and a whole lot of other stuff. But imagine all the things you could build if you had a 4x4 and 5x5 crafting table. Minecraft would benefit from this because these arnt two items added but are a whole entire wardrobe of things to add to minecraft!!! Picture it this way, you love your enchanted diamond sword, but imagine a double enchanted diamond sword. Yep double the power double the strength because the sword has two blades!!! and then with a 5x5 crafting table you can build a triple enchanted DIAMOND SWORD!!!!!!!!! and you can build many other things with them. Like in the tekkit mod you could build a motorbike using rubber for the wheels glowstone for the light iron for the structure and an engine or something i dont know i dont play tekkit. With this minecraft will have a whole bunch of new stuff not just swords or pickaxes but maybe stuff like a special enchanted collar to name and officially tame wolves to attack and do tricks.