Hasbro has already stated that there was NOTHING wrong with the hands, they were always meant (see: engineered that way from the start) to come out like that instead of all the way. DN
its because when you pull out the hand while the hook in on the arm, the hand wont knock off the hook
The only reason the hands were "gimped", so to speak, was because people were dumb enough to keep pushing them out when they wouldn't go any further, thus breaking them off. It's their own faults.