The new app sucks. It shows only 4 chargers and for some reason it doesn't show the second closest one for me. Seems pretty random.
Also they removed chargers from the default navigation UI so you can no longer easily see them at a glance. Why?
The old app only showed 4 chargers as well, and its selection of which ones it recommended was similarly wonky. Why? It's the same data from the Tesla back-end API...what's changed is the presentation (which I actually happen to like better):
Weird thing I noticed: The set of Superchargers in the "Nearby Superchargers" section of the Tesla app seems to be non-deterministic, or at least not solely dependent on the car's location. Maybe this is only observable in places that have a high density of Superchargers. I've observed this...
To the second point...that's a thing in-car. I think it's to prevent turning the map into a sea of red pins in Supercharger-heavy locations like the SF Bay Area. But that has nothing to do with the app change.
The new app has enough issues on its own without people inventing new problems.