I don't agree at all. Developing in Rust (or other memory-safe or mostly-memory-safe languages) is going to be orders of magnitude easier than writing things in C and then running through several dynamic and static code analyzers and quieting the mountain of false positives you'll see with those, plus the massive test suite that you need to make any use of them.

I was just pointing out that, in the case of the particularly diligent OP, he is probably getting an equivalent level of safety - for much more effort though.