I feel it’s fine as a short term solution, and probably a good thing. Gives the good guys some time to stay on top.
Always remember: a defender must succeed every time , an attacker only once.
So then why expect that you're making the world safer by limiting the capability that your vendor locked customers have access to while attackers will go find the best de-censored model that works for them, wherever they can find it?
Yeah, it is easier to destroy than to create. Models will always be better at hacking than at building.
Given the list of very large companies in the "glasswing" project - it is likely every competent state actor and criminal organization already has access to Mythos in one way or another. Meanwhile the opensource volunteers responsible for the security of the entire internet don't have access.