Out of curiosity, what marketing material are you referring to? I.e. what is it that you find misleading, specifically?

If anything, I feel that the Julia website and manual focus more on technical computing than they ought to and could stand to spend more time on general computing matters for which the language is also well suited. I’ve been meaning to write a blog post entitled “Julia is a General Purpose Language” for a long time. Which I suspect you would take issue with, but that’s ok.