To me that actually makes perfect sense and I am sure why 6' was chosen.
Here in MA we have an amendment that says more or less 'the measurement will be the shortest path a 6' cord could take without passing through walls, doors or other barriers' To me this is logical and a good amendment.
To me it all depends on what's on the end of the cord as to whether the appliance will reach the water or not.
Not the cord itself.
JAP>