I don't think the developers promised more here, but the community might have overhyped itself as it is common. It's still a very solid .1 release, the improvements to space logistics and platform building are very nice. There's also a whole bunch of really nice circuit additions.
Gleba is different, but I think that is good in a game that is as long as Factorio. There's a bit of a bumpy difficulty curve here if you approach Gleba in certain ways. But it is very different mechanically than the base game or the other planets in a way that is interesting, at least to me.
It took me two or three iterations when I first landed on Gleba. But afterwards my factories there were more robust than on the other planets and almost never stalled or broke down. And solving that was quite satisfying.