My reply was not intended as an attack on Git. I use it daily and would choose it 10 times out of 10 vs. CVS for a new project. I just think the assertion that Git 'saved' Linux from some backdooring attempts because it's decentralized and uses cryptographic hashes is wrong; it's not the tools that make this happen, it's the processes around the use of these tools which do that.
I don't know any OpenBSD developers nor do I have any inside knowledge of how their team works, but I know from observation that they are a small team with high standards for code style and quality. They don't just let anyone commit code and appear to be thorough with code review. When procedural/practice problems are identified in the industry, they are proactive about mitigating or fixing those. They have a demonstrated track record of good releases. Basically, I don't see any reason to question their use of CVS.