Using C is a tradeoff. I personally wouldn't write unsandboxed mission-critical code that has to interpret untrusted remote user input in C. But for anything that's not that, the freedom it gives over everything is awesome, and it makes many things possible to do trivially that would be nigh impossible in most other languages (at least not while keeping around any of their properties of safety).

But, it is, in fact, possible for good developers to write incorrect C code. Noone's claiming that's not the case. It's just a lot less likely for someone who actually knows the language and the codebase.