Despite all the flashy tools that proponents of C and C++ claim that makes C++ as safe as Rust, it's not doing any good at stopping the exponentially-increasing amount of vulnerabilities and crashes that are being reported over the last few years.
Advocating for Rust by lying is not going to help anyone.
The claim that Rust's memory safety is sound while C++'s is not is... not really the question. The question is whether that matters in practice. C++ has certainly improved in making certain mistakes easier to avoid.
Now, I come down on the Rust side for many situations, but making unsubstantiated claims about your language of choice is exactly the problem people had with the Curl blog post. Please stop making them about Rust.