I have never disassembled the distributor just to check the pick up coil. I check it with the distributor still in the engine.. In a properly functioning unit, as the distributor spins, it generates a low voltage signal. I first check all the components for physical damage. Distributor bushing/shaft wear will sometimes allow the rotor teeth to contact the stator teeth, damaging them. 90% of the pick up coil failures are due to a broken lead.. Use an analog meter for testing... Disconnect the coil from the ICM and test it's resistance.. The specs are -- 500 to 1500 ohms.. If the resistance is ok, connect an analog meter to the pick up coil leads. Set the meter to the 5 volt AC scale.. Spin the engine over and read the voltage output.. It doesn't take much voltage to "trigger" the Icm.. If voltage is present, the pick up coil is good.. If the coil is bad, THEN it's time to remove the distributor and disassemble it..
The video is well presented but it is senseless to go through all that labor when you don't have to..