No, but a person who hasn't written C++ will write way more bugs, because so many of the stuff they learned in other languages creates extremely severe bugs in C++ rather than compiler errors. I can understand anyone who wants to avoid having to deal with those learning mistakes that every new C++ programmer has to go through.
In C++ code that looks right and clean to a non-C++ developer and that passes tests can still crash the entire program in production with no stack trace available. Or you can accidentally make copies of a big collection every function call (since C++ is pass by copy value by default even for large collections) in a hot path which would also bring down production, or massively inflate your bills if you dynamically scale up.
The same doesn't apply to most other languages, there experience transfers much better and its unlikely for experienced programmers to add novice bugs in those even if he has never programmed in it before.
In C++ code that looks right and clean to a non-C++ developer and that passes tests can still crash the entire program in production with no stack trace available. Or you can accidentally make copies of a big collection every function call (since C++ is pass by copy value by default even for large collections) in a hot path which would also bring down production, or massively inflate your bills if you dynamically scale up.
The same doesn't apply to most other languages, there experience transfers much better and its unlikely for experienced programmers to add novice bugs in those even if he has never programmed in it before.