That sentence stood out to me as well. I don't think C++ developers is necessarily the best people to ask when discussing whether memory safety is important and urgent to work on or not. A lot of developers are relatively shielded from the consequences of bugs and security vulnerabilities, either by their programs not being exposed to the wild in any major sense or by bureaucracy being in between them and any consequences.
At some point, the deficiencies of a language becomes a concern for its end-users rather than its developers.