The article felt fairly dispassionate and even-handed to me, and I say this as someone who dislikes Klabnik very much and also dislikes the Rust community (especially its insidious, forced MIT rewrites of popular GPL software, with which they also break backwards compatibility). It is worth mentioning that there are certain things about Rust that conceivably could make it faster, e.g., const by default (theoretically facilitating certain optimizations), but in practice, thus far, do not.