Ride sharing apps have decimated the taxi industry. I find that I must wait longer for a cab than in the past, presumably because there are fewer of them operating.
But this press release suggests otherwise! Apparently there are so many cabs that it's worth it for them to pay money to skip to the front of the line.
Perhaps at that airport it's still lucrative enough to operate a taxi, but the reason for the long wait for a fare is likely the availability of alternative ride-sharing services.