Is sustainable taxiing possible at a busy Schiphol?

Thanks to the Taxibot trial, we now know what the prerequisites are for sustainable taxiing at Schiphol. However, we carried out the trial using just one towing vehicle at an airport that had been dramatically slimmed down as a result of the coronavirus crisis. This meant that more research was needed into the scalability of the concept. What if all aircraft were to taxi sustainably at a busy airport?