It sounds like they want to compete with VRChat since VRChat can do almost all of their stated goals with the added bonus of users being able to create and upload content, and despite the name, you don't need VR hardware to play it. The only thing listed that VRChat doesn't have or can't do is a single, giant world.

Also they state worldbuilding will have a "catalog of objects," but VRChat worlds are just Unity levels, so you can put whatever you want in there. You're not limited to a "catalog."

I'm pretty convinced they wanna compete with VRChat.

Minecraft wasn't marketed as having "every genre", while showing exactly none in their demo videos.

When you design a game you come up with a core game play loop, Minecraft had this, and notch was competent and humble enough to make his game from scratch, and release a MVP people could play.

This game doesn't have a core game play loop so it hides behind nothing burger statements like this.

Whenever someone makes claims that are both grandiose and vague you should take it with a grain of salt.

But do you know what it does have? it doesn't describe in ambiguities? kickstarter rewards, you get pets, and you get to put your name on a billboard, and the more you donate the bigger your name.