Didn't they say there would be a story to follow, ie objectives and the such? Did I just imagine that shit?
Yes. He said you can play it alone and do the "quests" and "story" on your own. Not something marketed along with games like Conan Exiles or other survival games. That doesn't sound like a generic open world with no NPCs other than cannon fodder.
That said, it'd also be odd to be able to nuke quest NPC settlements. And if the world regenerates\respawns after such events.
And if you can build, and the progression carries over with you, with no real server selection, and you can build everywhere. What if you build in exactly one spot, then join 3 friends who also built on that exact spot. Who gets their stuff?
He didn't answer enough questions.