It's the lifecycle of many gig-economy apps. They start out good and slowly degrade as they plateau and try to find ways to cut expenses to continue growing.

They spend $3b of their $4b in revenue on corporate employees, $500m on restaurant "subsidies" and drivers, and the rest goes to stock buybacks ($8b last year). If they want to find ways to cut expenses, they need to look in their offices not on the street.