I never understand people who complain that free project X exists, when those people could be working on Y which is obviously more important. As if production and enthusiasm were both zero-sum and fungible.
Also, as someone who works with systems languages every day, I can tell you that there's a need for this work. I'm not saying Rust is it, but the systems language space is pretty dead, which is scary in a world where processors are threatening to become parallel on scales we don't know how to deal with with traditional tools.