The only reason more companies aren’t exploited is because human attackers don’t have the time and energy to waste on trying every play in the book, or attacking lower value targets.
The only solution that makes sense to me is for defenders to get to point these models at their own code to find the holes before the attackers do.
But that's hard, because how do you limit access to defenders and restrict access to attackers? Attackers aren't exactly honest people.
When we see them mount a quiet backdooring campaign, like the XZ-SSH attack, or something like Stuxnet, then we'll have real problems.