I don't know. The Owlcat games have a really deep system that Divinity and BG3 don't have. Is that just because of the pathfinder ruleset? Or does Larian do better with simpler systems? I don't have an answer to those questions. It might be cool to see a BG3 "version" of Pathfinder, but I think it would lose something in the process.
At first glance it's like "that's pretty crude, it could be a lot better", but it probably took way more time than you imagine. Even if they copy/pasted cells for a "paint brush" they still need to create the outlines, and that's tedious af.
You obviously didn't see this kids talent show presentation on microplastics in peanut buttercups