Not sure if the first video demo matches the hero statement. Professionals with deadlines doesn’t really map to “here is how to start a Minecraft server”
The problem with that is going to be the same as with other similar projects: single instance only. This puts the projects into a desert valley: from one hand, they are interesting to professionals; from another, the absence of horizontal scaling makes them just a toy. Meanwhile, home users for whom single instance would be enough cannot care less about this kind of technology.