I've followed NMS for a while. Since that first 'trailer,' which I took for what it was: 'Here's what we want to pull off.'
Everyone does it.
I mean, Apple is pulling the 'iPhone 7 Pro' because they couldn't make it what they wanted, so there's just gonna be the 7 and the 7Plus.
How often does a movie trailer match the movie precisely? I mean, I get wanting what the original trailers imply. I remember being somewhat let down by Black & White (I still enjoyed it, mind) because even their 'gameplay' trailers didn't match what there was later.
But NMS, at its core, advertised as a single-person exploration game. I think a lot of these people saw it as a "replacement" for Star Citizen or EVE. Because for all the people who don't like it (and claim Hello Games lied), I know just as many people like me who got exactly what they wanted.