The original one uses AA batteries while the second iteration, pictured above, uses an integrated battery that needs recharge using the Lightning cable. As you can see, there was no redesign to accommodate this new requirement besides slapping the charge port under the mouse, making it impossible to use while charging.
BTW, there WAS a redesign...it's just that you don't like the redesign, which is different. Some of us like the fact that the Lightning port is hidden and not sticking out the side of the device in some ugly way.
This is a vast improvement which saves all the waste and inconvenience of throw-away batteries.
This is the point. If an engineer had shown this piece of work to Steve, do you think they'd still work at Apple?
Edit: BTW, you'll eventually have to throw this mouse away because the battery is dead. And there are AA batteries that can be recharged and used many, many times.
