Yeah, Interstellar definitely scratched this itch for me, and I appreciated it for doing so.

Certainly the theory has developed greatly since then. But being even somewhat informed about the contemporary physical theory would've made the sequence even more impactful and satisfying, for me personally.

I don't think technique would've necessarily required greater complexity or difficulty. For example, one might have used the same planing technique, but used different patterning and colorization, based on more mathematically derived outputs. Not suggesting any kind of simulation or super-advancement. Just using the same technique, but informing the visuals based on more physical theory.