When you have a deadly weapon in your hand, you have absolute, total and sole responsibility for what happens. You can't say 'they told me nobody would get hurt'.
I don't not expect a conviction.
More magical thinking about guns.
That’s a fine thing for an individual gun owner to internalize about their responsibility for their weapon.
On the other hand an actor is hired to film a movie. If the director says, “The shot is for you take this prop weapon, point it at the camera, and pull the trigger”, and after asking if the gun is safe and the assistant director says, “Yes, the armorer safed the weapon”, if you don’t pull the trigger they fire you and find someone who will.
In other words the responsibility is now shared with and primarily on the armorer to make sure the gun is safe.
In this specific case Actor Baldwin is not responsible for the accident. Producer Baldwin may have some shared responsibility with the other producers, armorer and armorer staff if there were obvious unsafe practices occurring and he was willfully ignorant to them.
Requiring actors to be responsible for their prop weapons is a good way to have more shooting accidents. No production is going to train actors as armorers and your average gun owner will not be capable of telling a live round from a dummy round from a blank.