[jjk166]

If I have a car that worked great 50 years ago but haven't been able to turn it on since the 70s when my neighbor destroyed the engine, I would not call that a proven, working car.

The "existing tools" have been proven to have a major weakness, namely they can be neutered by regulatory capture. Unless you can get everyone to magically forget how they circumvented the rules last time, you can't simply restart using them.