LU,
your chemical may well have been the additive to make AMK (the identity of the additive was never mentioned in the video footage), but how would the degrader convert the thickened fuel back to a free-flowing kerosene? The voice-over was notably silent on this process as well, merely mentioning the degrader hardware which was mounted above the engine just behind the leading-edge of the pylon.
It always comes down to dollars, doesn't it?