Starship is still in development and is running into significant delays and they have yet to show even a depot, tanker and lunar lander mockup. What real world results are you talking about? It is not like the current version of starship could deploy a payload because they removed the payload doors to make reentry easier. The last test flight took many steps back to test upper stage reuse, which is a capability that won't be needed any time soon and could have been tested in parallel with other changes. Sure, with every test they are incrementally developing the rocket, but from my perspective the progress between launches is the same as if they hadn't done any test launches. There is no magical development speedup coming from their approach, mostly because they are taking many detours. The attempt to launch without a deluge system was just a waste of time and their first rocket. They could be moving faster, but they don't.
