I agree it's a pretty big immersion breaker, and I'm bummed it won't be in, but I suspect this is one of those things that's a bit too late to change now since it would require some considerable work on their engine and gameplay mechanics. Perhaps stressing the importance of it would be useful feedback for any subsequent games, but I also doubt it'll end up coming in as DLC. I don't really see it as a dealbreaker, though... but it really does add to the experience.