disclaimer i am working in gamedev and using C++.
I find the paper is really low on anything that other organizations relying on C++ heavily can take home as advice.
Like they still need their C++ systems [3]. They failed to make changes in their C++ systems that will make a difference [2]. And only progress they have is writing new peripheral or unimportant systems in other languages [1]. They do not believe that anything of importance will be following rewrite path on their side [3].
1. "gradual transition towards memory-safe languages like Java, Go, and Rust"
2. "We see no realistic path for an evolution of C++ into a language with rigorous memory safety guarantees"
3. "A large-scale rewrite of all existing C++ code into a different, memory-safe language appears very difficult and will likely remain impractical."