Because an EV lot is delivering power to a point (the charger) and parking is a business the city regularly operates. There's nothing novel to the city there.

A laundromat does take power routing, and there would be sufficient expertise to do that part, but operating a laundromat is a business the city has never done before. It requires knowledge of machines, customer traffic, laundry care, and a bunch of other stuff the city hasn't done.