The "Generally, people who actually know what they're talking about"? I could have phrased it better, but "Rewrite it in Rust" IS a bit of a groaner in the Rust community because of the history of having to do damage control for counter-productively rabid fans who have no idea that Rust isn't magic pixie dust and that rewrites actually take effort.
(I've been lurking in /r/rust/ since before Rust 1.0 came out in 2015, so I've seen a lot of that.)
The "In that respect, Rust serves"? I'm not the only one who sees Rust as taking the best stuff from functional programming and stopping before the return on investment starts to tank. For example:
https://dev.to/yujiri8/why-i-don-t-believe-in-pure-functiona...