Just like how the Hyperloop was a scheme to prevent development of trains. Tesla doesn't try to make the best product, they just try to hurt the competition.
Supercharger is the best product, and without Tesla we wouldn't be half as far as we are with car electrification. I don't get the ludicrousness of statements such as yours.
Superchargers were the best product, yes. But then Tesla fired its entire supercharger team, demonstrating how little they care about it right now. They've been simultaneously dragging their feet on allowing third parties access to the network, as originally promised.