Yep. There would be a line of lawyers at that guys door the next day to ruin his entire life. I'm surprised they haven't already. Would love to play it but unless there is a "leak" it's not happening.
It’s not finished and the performance is poor, so no it’s not in a releasable state even if licensing wasn’t an issue. It’s an incredibly cool project but I don’t think anyone should believe it’s a commercially viable project, not even the creator suggests so.