Definitely. If it was clear that external beacons were necessary, you would have the Tesla beacons, you'd have the European manufacturer associated beacons, you'd have the Japanese manufacturers associated beacons... installed at manufacturer's cost (or as a partnership), leading to duplication some places, total absence in others, and exclusivity in the rest. And the EU would do better than the rest of the world, having cars with different receivers (manufactured only for the EU market, of course)