It all depends on where you live and what is nearby. It won’t work for everyone but then I don’t think that will be the goal. It’s just another possible way to charge. For example if the charger is located on the edge of a village and you could park up (parking space sorted) pop into the village do whatever then come back and leave then it could work. You won’t charge the car all the way from 20% to 80% in that time but again I doubt that is the aim either.
overall I think it’s good that there are new ways of charging being developed. Might not work long term but a better idea might come from this, who knows. Also, if it doesn’t work for you or me, it will work for others which will surely free up other charging points somewhere else