This was a scam from the start. They fucked themselves because their trailer was popular and they promised the world. Their goal was to create a shit early access game with pre-made assets, get lots of buy in when it was released, endure some bad reviews, promise to fix things but then slowly dump support for the game. I've watched this exact thing happen probably ten times now.
What killed them was the hype and popularity. They were called out immediately for what they were doing and got stuck having to now make an actual game or face legal repercussions.
At the very least these cash grabs are getting spotted early and they're not getting to sneak by without facing consequences.