Tesla and Apple understand that the charger elegance and design is more important than the strict engineering requirements.

NACS is theoretically a worse charger, but it's more approachable to consumers.

CCS1 is clumsy , heavy and makes the car look like it's attached to an umbilical cord.

That's why they had to dump it.

This is exactly right. It's just too big and clumsy. It's almost always the Pareto principle option that wins if it's easier to use. Because "good enough" is all that matters to most consumers.