Yah, it's a great point that the whole scheme is predicated on very questionable land use policy...

You are not getting the 3-6 mile per day boost if your car is parked in the shade.

That's his point. You won't get any reasonable charge because you (mostly avoid parking your car in direct sunlight

What kind of European cities are you talking about lol, no offence but I hate this generalisation of "European" anything as if Southern Spain has the same culture and architecture as Poland or Lithuania.

It is a somewhat fair generalisation of urban europe to have more innside parking or tall ish buildings that give shade.