Your correct.
Vegas, airports,festivals and sporting events are all doing this.
I was staying at NOLA Hilton Riverside for an event and I had to walk to the corner by Harrah's for pick up. At the airports drivers are instructed to a designated area which has numbered parking spots. Your driver arrives and text you the number of the parking spot.
I heard it was the compromise to the complaints of the taxi industry. Taxi's are still able to have free reign at these places.
Having the numbered stalls also prevents people from stealing your ride. Trust me, when people are at a large event and they are ready to go,they will confirm that their name is whatever the driver calls out and they are on their way. Total B.S.! I like the numbered spots. We should use 10 parking spots over by the Track/Soccer stadium as the UBER lot.