This is even more impractical. Just to be clear: impractical doesn't mean impossible - it just means that there's no way this can be as economical, safe, and efficient as existing concepts.
An actual station or "a series of parking spaces" as you put it, has no advantages over a traditional subway/people mover station in terms of efficiency, cost and space requirements while offering significantly less throughput.
I just don't see how any of this would be an improvement in any way.