> 2 data pins is USB 1.X/2.X USB 3.X requires 6 data pins at a minimum.

USB-C cables don't have to support 3.X to support data. You only need the two pins.

> The standard config for charge only cables (e.g. the Nintendo Switch charger) is 2-2-1.

That's a shame. It's really not that much effort to support 2.0 data.