I don't want to see Uber fail, because I hate catching taxis, but I think there needs to be a serious reality check here. The business model that Uber runs upon is still relatively unregulated & fragile, and as shown in Vancouver, cities and Governments have the power to easily drive out services like Uber. Not to mention the pressure from taxi lobbyists.
I don't want to see Uber become a monopoly, but this cash injection can only mean that Uber will aggressively attempt to drive out its competitors therefore becoming a monopoly and in the process, a splitting image of the broken taxi industry they are trying to disrupt. As history has shown, when you have next to no competition, you stop innovating. Lets just see how this plays out.