Except for the obvious implication of these sentences: Uber is creating a race to the bottom. Their corporate strategy appears to be to cut the fees they charge riders and increase the fees drivers pay to Uber to exactly the point where they can still sustain an unhappy driver population.
Uber has hired some sophisticated software folk. Perhaps they are being put to work to build an equilibrium model to tell Uber exactly where this balance between decreasing driver income and driver turnover lies.
If it were not for the ugly cost born by drivers (and perhaps riders) this would be an interesting problem in software optimization.
http://www.nderground.net - a social network built for privacy.