I think the idea has some merit, but it only buys time, as people will soon be able to train dangerously powerful AIs in secret. I think the government needs to force the labs to solve alignment before developing more powerful models. Then the question of how to counter a poorly-aligned, rogue model arises; it's guaranteed somebody's going to let one loose.
And it doesnt really matter if it was actual terrorism or false flags, the end result for either is the same.