As with so much (LLM) security work, the devil is in the details: "~25 security issues per codebase" means nothing without a grounding in the codebase's actual security model, capabilities exposed to an attacker, etc. I haven't used Aikido's product, but my experience with similar tools is that tend to not find actual security issues until a proper security model is introduced for grounding.

(I say this as someone who is, broadly, extremely impressed by and interested in the use of LLMs for security research.)