I agree with you, such projects are really very interesting and I also support the development of this project as I want to see a finished workable product.
I think first you need to get more information about the plans of the developer of this framework in order to assess the perspective. I would also like to hear the opinion of game developers about this framework.
So far, these are only plans and the finished product is still very far away, but before its implementation there is time to collect information and prepare the basis in order to ultimately make a quality product. I would be interested to know exactly what plans the developer has and what exactly he has already done.