Thanks for taking a look! Happy to chat, DM me here: https://bsky.app/profile/totalhack.bsky.social
I have nothing against SQL of course. The simplified approach of a UI built on top of zillion or tools like it really enables a whole next level of productivity for business users that are never going to learn SQL, but also need more query flexibility than just "dashboards" without having to wait on a BI team for answers -- I die inside a little bit every time I hear of a company doing this. And as you have noted, I also think text-to-semantic-layer is an interesting approach for involving AI/NLP.
I've been pulled away from this project for some time due to an acquisition at my day job but hoping to get back into it soon!
Also full agreement! In an optimistic view, the SQL layer (at a slightly higher level) unifies the top level accessibility tools (NLP, drag/drop chart result builders, etc) with the more tech-familiar level of analysts/engineers, and provides progressive disclosure as you go down the stack and a path to promote the adhoc/SQL level work up to reporting easily.