Part of the spec for the USB-C port is to not have any moving/flexing parts because that is like 1000% easier to design waterproof/water resistant portable devices for. So to keep with that, to implement your solution the prongs would have to be on the cable. And in that case it should be pretty doable. There’s nothing stopping someone from designing an improved cable connector and throwing them on a new cable.
Part of the spec for the USB-C port is to not have any moving/flexing parts because that is like 1000% easier to design waterproof/water resistant portable devices for. So to keep with that, to implement your solution the prongs would have to be on the cable. And in that case it should be pretty doable. There’s nothing stopping someone from designing an improved cable connector and throwing them on a new cable.