Ooh, this is a fun concept. I really enjoyed it. A shame you didn't get much of it functional, but I see the vision, it has a lot of potential. And I loved seeing all the different forms of each member.
The tutorial was nice, but a bit of in-line aid can go much farther than a paragraph before you start. Just listing the role beside each gen's rank would go a long way, like "Justice (Tank), Promise (Support)" And then listing (NYI) beside each non-functional ability would make it clear what's working without needing to check the itch page on another monitor.