True enough, but the pictures (including the users pictures on Mac Rumors) show a very clean cable. Unless you told someone, "hey, this cable is all hacked together, don't buy it!", noone would really care. The product appears to work, and provides functions that a single spare battery for a laptop wouldn't. It's a solution to get more runtime for people who are "stuck with" a longer running sealed in battery.

I guess in the same vein, I used a hacked solution to get the empeg into my car, since it didn't come with the vehicle and I had to cut cables during install.