[vardump]

Tooling absolutely helps to reduce defects. That's why you use them.

That said, sometimes I'm shocked what kind of disasters get past the analyzers.

Stakes are higher than ever. It's not just about functional correctness and avoiding crashes anymore. Your code needs to be secure against outside world malicious actions. Getting rid of counterintuitive security vulnerabilities is very, very hard.

[pjmlp]

I would say that is why security conscious developers use them.

Sadly we are a very very tiny percentage, as proven by Herb Sutter question to the audience at CppCon (1% of the audience answered positively), and CVE frequent updates.