I am currently learning Rust and found the post interesting. As I learn the language, I keep reading how Rust is great and you don't have to manage memory (unlike C or C++).
However, managing ownership and lifetime _is_ managing memory. The borrow checker is there, all the time, reminding you of memory management.
Now, in C and C++ the same problem exists but you don't have a borrow checker to remind you. I think this is the same conclusion the blog post came to, but I'm not entirely sure.