They haven't fucked us over so far with DLC, MTX or any bullshit with their previous entries, so no reason to believe they will do here, they are very open with their development and talking to the community. So until they actually screw us over, it's unfair to pretend we are being.
It just sounds like a miscommunication/misuse of the term by KRAFTON, Unknown Worlds then came out to clarify. We will just have to wait and see, we can get actually angry once we know there's going to be some bullshit involved.
The only current downside to the next Subnautica is that it's going to be built on UE5, I just hope they manage to avoid all the shortcuts.