The resistance in the ignition plug circuit is indeed designed to eliminate the electrical noise for electronics. Kind of like using a nozzle on a garden hose to restrict water flow.

The wires already have a resistor built into the ends. You are doubling the resistance in the circuit. It's like using two nozzles in a row with the first one already at the "half closed" position.

Here's a simplified version of DC electricity as explained to me years ago.

Electrical current is a river. It flows from high to low. When you put a dam in the river (resistance) it decreases the flow. The holding pond behind the dam creates a potential force (capacitor) which is released through the flood gates (transistors) to power whatever it is you're powering.

When you are using your starter motor think of the ignition key as being a mechanical transistor to create the flow.