As a longstanding Minecraft player, that's played less and over the years, I simply don't know how I feel about this.
A side of me hopes that this technology gets used to drive progress in self-driving cars, robotics etc. My intuition says that having a sandbox that looks similar yet functions unexpectedly could greatly help with sniffing out edge cases.
On the other side I fear that this ends up in the next generation of social media - never ending generative short-form content. Obviously, in its current state the effects on the brain regarding object permanence could be... devastating?