Loop has smaller but more numerous stations, because it can have smaller and more numerous stations. With trains every station along a route adds considerable delay for every passenger, exacerbated by the slow stopping speeds of rail. This is not so for pod-based transport where the stations are split off the main line. Stations are also cheaper because they can scale down to only a small subset of the though-traffic.

So.. roads. With taxies. You’ve reinvented roads without parking lots in taxies lol.

Except for all the significant differences, yes.

It’s roads in tunnels with small cars/vans going mostly point to point.

It’s just a separate road system with pods driven by a person or computer.

What are the significant differences?

Traditional surface roads in cities:

* Take surface space that can be better used for walkable densification, or are already taken by roads.

* Produce significant atmospheric and noise pollution, even from EVs.

* Conflict at cross-traffic, especially so for dense road networks like grids.

* Have to navigate around building geography, so for example can't support high speed turns.

* Conflict with pedestrians so are limited in speed and have to support frequent stopping points.

* Have no central routing and control for journeys so suffer unbounded traffic, even where additional vehicles lower capacity.

* Are hard to add to existing developments that need additional capacity.

* Don't have out-of-line stations for on- and off-boarding.

Add to this the differences you've already mentioned, like uniform taxies rather than mixed private cars, a comparative ease of automation, and being additive to existing network capacity rather than conflicting with it.

Most of that is just “tunnel vs surface” or “private vs public” ownership

It’s still just roads in tunnels with taxies.

Yes, I agreed already. Putting aside all the important differences it's the same thing.