Maybe there is some astroturfing going on, as is usually the case, but it's already known that Codex/Claude Code and their ilk have been ruining CTFs for a while.

And well, one can always prompt "review my feature branch" or "review this file for bugs" with these tools; code analysis plays into the strengths of LLMs far more than code generation, since false positives/hallucinations aren't a problem with the former.