I find it valuable that they spelled out their motivations and agenda for creating this language, which will help prospective users to decide whether they need

I find it valuable that they spelled out their motivations and agenda for creating this language, which will help prospective users to decide whether they need to take this language seriously or not. This helps attract users, and arguably the main value of any language is how well users can interoperate with it. Folks can freely create anything, but it might be a shame for such efforts to go to something that only few people will use.