Not misinformation. All wires have some resistance and inductance. Just because they are the same "circuit" does not mean the same location. That same common circuit could be broken down showing small resistances due to wire length (and even connections) between each part of the circuit.
Having the connections closer to the battery, and on a different connection than the starter or other high current loads will also help prevent dips in the voltage when a high current load turns on. E=I*R