Interesting how few people are willing to actually think about technical musical questions. A usual phenomenon about music (especially film music) that people immediately start talking about their own general ideas of music (or film music) instead of trying to get into the challenges of a specific technical problem.
My idea about orchestration for film is that as soon as one has to touch the eq or fader to match its balance to the other elements dialog and sound fx, the composition and/or orchestration is wrong. Of course it's first a matter of composition, but there certainly are the situations in which you really need this strong musical impact and still there is dialog at the same time. And this is possible, one just needs to know how to orchestrate it. At least the great opera masters knew it (I think).
So, thank you Alexander for actually understanding why this question is so relevant. I take your suggestions with great curiousity and will study everything you suggested. Would be great to hear if your orchestrator friends care about this question.