Condensors, especially some of the new ones out there, can fail instantly. As far as the coil and/or ballast, I don't see that as the cause. If the coil is actually indeed a 3 ohm 12 volt no ballast should be required but you may wanna check with Pertronix on that to be safe and go with what they say NOT me or anyone else here. Excess coil current from wrong resistance coil or a missing ballast if needed, can cause premature points burn up moreso then condenser failure in my experience.
John T retired electrical engineer