they should’ve shown more behind-the-scenes details and secrets of F1 (at least what’s allowed).
And what I find incredibly disappointing is that they had so many current F1 drivers, but they were basically just extras — not even a single line of dialogue.
Regarding “more insight into the FIA etc”: I guess they weren’t allowed to? Maybe the FIA wanted to remain exclusive and elusive?
Regarding other drivers: maybe they didn’t want to, or contractually weren’t allowed (each appearance would be like free marketing for that team… so for some to get an appearance and others not to may have seemed unfair).
Also, too many current drivers may have made the film a bit less timeless.
Remember (and I get why a real F1 fan would want more), it’s a work of entertainment fiction. It needs to cater for everyone, and be accessible to all, not just existing F1 fans. If you want more realistic insight, that’s what documentaries and things like Drive to Survive are for.