That safety stuff is almost always quacks whose job it is to exaggerate LLMs at their non profits or marketing hype that "our models are so powerful you should fear them". Then they release them and the world moves on and adapts.

Mythos will benefit security in the long run more than hackers, if it can do what they claim. And there's nothing that will stop an LLM like it from being released in the near term so it's very likely just resource constraints or marketing