The car free idea is great, but this looks like it's inevitably gonna turn into a dystopian nightmare since it's actually cut off from the rest of the city.

The great thing about good cities is that they make it easy to meet people, but they're also decently large so there are enough sub communities that you aren't forced to conform entirely because you might otherwise get kicked out of the only community available to you. This is a village problem (although villages being far less dense make it easier to hide the non conformist stuff you might be up to).

This development combines the worst of both worlds. It's too small and cut off from the rest of Phoenix to give residents access to a large set of sub communities, and it's too dense to keep your stuff to yourself.