With 5g
His approach is a perfect hybrid to get self driving vehicles working. A remote driver simultaneously monitoring a few cars for the edge cases. As a more experienced driver they may even be able to handle emergencies better than a driver.
As the Software gradually improves the remote driver can handle increased number of simultaneous drives (each drive may be monitored by more than one remote driver providing redundancy)
A first use might be delivering fast food.
The service might only cost £5 an hour so popular with commuters who would rather play on the internet than drive