Nokia and KDDI demonstrate 4G can be used for connected car

Autonomous vehicles and the connected car have been one of the front-runners for 5G investments, but in demonstrating 4G can be used as low-latency connectivity for vehicles, has Nokia undermined its 5G mission?
This is part of the issue for the telcos when it comes to investments for 5G; the messaging is very messy. It will be an expensive mission to upgrade the world to the fifth generation of mobile networks, therefore sound business cases for ROI are needed, with autonomous vehicles and the