I don't mean normal everyday consumers. But I would be surprise if programmer don't go on internet often for information. Not information on latest news, but documentation, problem solution, etc. Stackexchange, Google. Even good old manuals of long lost chips, reference in assembly languages. The chances of these people never heard or bump into the word "Rust"?
That is like saying programmers have never heard of Swift.
They may not know anything about it. But not "heard" of it, is.... strange?
Hell i work for a car manufacturer with thousands of devs. Most of them have not heard from anything since early 00s Perl, PHP and Java. And they have not moved. Everything newer is "Startup stuff, we live in the real world here"
I see you have dealt with some of them recently :D
I mean to be honest, it is a great thing for me. As my specialty is to cleanup and replace that kind of systems, ala 18f/USDS. I have an easy job finding for my whole life.
But hell it makes it hard to talk with the "vocal" people out there.
We are not representing the majority here