Launch technology isn't the only thing space research and exploration is about.
It's an important one for sure! But it's just not true to say NASA hasn't accomplished amazing stuff in the last decades with the funds and focus they're allocated.
Does NASA have mulitiple programs, some of which are more effective than others? Hint: SLS/Orion is not Planetary Sciences is not Earth Sciences is not Aeronautics is not Astronomy.
It's an important one for sure! But it's just not true to say NASA hasn't accomplished amazing stuff in the last decades with the funds and focus they're allocated.