I am not saying they couldn't communicate better. Do some things differently. But at the same time, they have their vision of the game and before we are presented with the "main dish", we don't know what will and won't be available.
From dev discord.
Ah, I didn't get around to updating that roadmap yet, I hope the wording on the old roadmap is clear enough though. The devs can be a bit difficult with properly updating the community on everything they are doing. There's a lot of backend stuff such as upgrading to the newest UE version, redoing character rigs and models that are happening behind the scenes right now, so some people might assume all we get are "just" some animation and a creature every now and then.
Though for the forseeable future it'll just be Prologue, the "main game" (the kenshi like) following after, the earliest mention was for a 2026 <maybe> early access release (though this has been redacted to "to be determined", as to not set expectations too high).
The new map (the outside fort) is going to drop in the next 1-2 patches though (not counting the patch that they are late on right now, but the patches after). Which might feature the "upgrade" system that's been skipped in the cave, as everything is already maxed out, this might make a playthrough a bit more interesting with stuff to spend your money on.