It’s a pilot program, like how they tried one free bus per borough. Easier to get past your opposition, and you gather data on if expanding to a program with real impact makes sense. And it makes sense that they don’t want to spoil or reveal how big this might get if it starts working, because that’s just handing ammo to your opposition. It’s exactly how thing like this ought to be done, slowly and scientifically, and in a way that is not so immediately threatening to the status quo that it will get squashed before we can see if it works or not as a solution.