SawStop and the land of the free

Imagine having a brilliant, obvious invention stifled by the incumbent players hell bent on denying that there's a problem in case they get sued... welcome to America.

The SawStop is a great invention that whips away a table saw blade if it comes into contact with your finger (see here for an awesome video demonstration). Now it turns out that none of the manufacturers want in on it!
Unbelievable...