Keeping mind that, if you have an RCE bug, any other class of bug is irrelevant. It's a bit like diagnosing someone with the flu after their head has been cut off. And while acknowledging that you're not personally weighing in either way, I will personally call the idea that you'll end up with just as many bugs of a weaker class to be quite silly. Everyone starts as unfamiliar in every language, but not every language makes it equally easy to accidentally introduce vulnerabilities. Defaults matter, tooling matters, and community norms matter, and all of these make it less likely for a low-quality Rust programmer to introduce vulnerabilities than even a medium-quality C programmer.