Right. But the data tool is designed to be integrated across municipalities via a shared schema -- this fundamentally changes the efficacy of the data -- it makes the data more valuable.
Palantir Gotham is used by the LA police department and the data integration creates new capabilities -- even if they keep the data. At the end of the day there will always be a trade-off between crime and surveillance. Palantir explicitly sides with surveillance.
It really doesn't matter who owns the data etc. The moral position of Palantir is very clear: that it supports surveillance.