Bruce Lee was taking medication for his back, to keep his muscles loose (earlier he had a serious back injury while training with Kareem Abdul Jabbar in Los Angeles). After wrapping up Enter the Dragon, Bruce returned to Hong Kong, to resume his work on Game of Death. One day he visited an actress (forgot her name) to persuade her to join his movie project. While visiting, he started to have a severe headache. So she gave him some antibiotics. Bruce took them and went to sleep in the other room, but he never woke up.
Apperently the two kinds of medication reacted to each other, and made his brain swell up, resulting in aneurysm.
Considering there are variants of the activation switch that need the force to activate, with the proper amount of telekinetic skill they would be perfectly viable, as you could toggle the blades on and off at will, as well as control the trajectory.