A mass conversion to fare-free urban public transport is a threat to oil creditors. They will surely mobilize their trolls and attack viciously.
In addition there are millions of people who depend on sprawl subsidy for their profits. Cement, natural gas, appliances, DIY stores, home construction, and many more depend on sprawl and growth. They will strike back hard to keep their subsidies and profits.
As soon as the Kansas City success euphoria cools, they will surely start attacking.