You are, of course, right in many of your points, but we have seen time and time again that languages are successful for other reasons. It usually is a matter of opportunity (i.e. it comes with a mature library that solves a hot problem), not design. However, I am also unsure if rust is in the right spot to gain wide traction or if it will stay in the Tier 2 of enthusiast, but not commercially adopted programming languages, like many other great languages of their times.