I mean, every rust forum has a "no language zealotry" rule in place, partially to head off the RIIR meme. I don't know what you want the Rust team to say, "Don't use Rust to improve your C projects"?
Or something like that. Then there's something out there and clearly visible that immediately shuts down the zealotry because the maintainers have said exactly where Rust stands, and what they think it's great at, and what it doesn't do. Which seems like the problem: that the zealots are giving the impression that Rust is better than C for everything.