Yes, it's the same line of logic because it's correct.

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.