I still think it's a remarkable success story and they can and should be incredibly proud of what they've built. But this vision of what is meant by cosmic depth and expansiveness seems to tragically miss the point.
Compare it to even our own solar system where even so much as a new high-res photo of the hexagon storm on Saturn comes with stunning new and specific detail, or the "heart" on Pluto, we're practically ambushed with novel configurations of atmospheric dynamics and geology. It's frustratingly rare for games to truly activate that feeling of wonder.
I think NMS is still an unbeatable deal for what it is as a game but it's a frustrating near miss flyby of what I think people want a true space exploration game to feel like.
I think Elite Dangerous had this same issue, at least the years after it was released when I played it. You have this whole to-scale galaxy to explore, but the vast majority of them contain no story, no life, no space stations, no other players, and are just similar rocks and noble gas bags over and over. Once you've seen about 100 systems, you've seen them all. Which is likely what our real galaxy is like, too.
The game is 2 million light years wide, but a meter deep.
What do you think people want a true space exploration game to feel like?
Have you played Outer Wilds? It nails this feeling. If you haven't played it, don't read or watch a single thing about it and just play it with zero expectations.
The best space exploration game I've played is Outer Wilds (https://store.steampowered.com/app/753640/Outer_Wilds/), but instead of the NMS sandbox there are puzzles.