I guess it's a little like a modern ignition where each spark plug has it's own coil and the distributor, rather than directing the high voltage to the plug, sends the low voltage to each coil...
The flywheel based magneto is interesting...kinda like old lawn mowers with the single magnet in the flywheel...this just has multiple magnets...
But what closes the points...is there a solenoid of sorts inside the coil box..? I have a couple of those old coils, ought to look them over....