I find this strange, especially the criticism against Hans Zimmer, when he made really memorable music for Dune Part 2. He doesn't always use orchestras, but it depends on the movie. He uses orchestra so often though that he recently had a whole string of concerts where he had an orchestra play his soundtracks.

Also, I would point to Bear McCreary as a rising star in film/TV/games composing, who will likely become as influential as Hans Zimmer or John Williams.

In terms of the Brutalist, it could be that the score is trying to replicate the architectural style at the heart of the film. Brutalism is about cold, practical, simplicity. Why would you pair that with a sweeping orchestral score? It would be like draping a concrete block in velvet.