I don't really understand where you're coming from. It seems pretty straightforward. From the lawsuit:
"The Uber Defendants often transmit or provide the driver with a fee based on a reduced fare amount. The Uber Defendants retain the difference in the fare charged to the User and the fare reported to the driver, in addition to the service fee and booking fee disclosed to drivers."
So, yeah, the lawsuit claims Uber is overcharging passengers and underpaying drivers.