There is a similar phenomena around Microsoft, with nearly every news item about them attracting two such camps, so this news item happens to find itself at a rather unhappy intersection!
For what it's worth, as someone who's working on a first project in Rust right now, the actual Rust documentation and direct Rust community seem to be friendly and helpful. It's only in more 'neutral' discussion forums like here where most things about Rust devolve into trench warfare. I also feel that, subjectively, the core Rust communities (e.g. the rust-lang forums) are pretty honest about identifying places where Rust or its tooling currently fall short (plenty of "I don't know that there's a good way to do this right now.").
Source? The closest thing in C++ to what Rust offers today is the C++ Core Guidelines https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines but these are best-effort in nature and do not have a goal of comprehensively ensuring soundness or memory-safety.
And I'm not sure why you're implyng that the Rust featureset "isn't even thought through" when the Rust Belt project has been doing a lot of work on modeling it in a principled and clearly-understandable way, and this has already contributed usefully to the design of newer Rust features.
I'll believe it when I see it. The C++ committee consistently fails to deliver on safety features.