Usually how it goes and is exactly what's happening with FO4 right now, Bethesda has actually not done much hyping for the game themselves. While the fans have rocketed the hype train beyond Half-Life 3 levels and it might hurt the game down the road especially for those who have never played the series before. For everyone else though, eh, I think it's justified lol.
That's the problem I always have with games that use procedurally generated content and make that a selling point for itself. It's just randomized content that continues the further you go on and seemingly never ends, Daggerfall made use of it with the entire landscape & provinces of Tamriel, but when you explored those provinces they were all the same just with palette swaps. It didn't feel like the real thing and I can't help but expect the same with NMS, they're a small team of talented people but they aren't superheroes. They can only do so much with what little they have.
I think a good way to have countered that would have been to allow players across the world to inhabit each planet of their own and give the ability to pull minecraft-esque construction/settlements allowing for all planets to have rewarding discoveries and proper uniqueness. You build the foundation and tools, community takes care of the rest.