I don't love or hate Baldwin.
As producer it's likely he share in civil liability over the set's lack of safety. But I'm not ready to condemn him for handling the weapon if, in a rehearsal setting, he was supposed to crossdraw it for the camera. Would a non-firing prop gun have been a better choice for rehearsal, or blocking? Sure.
Should all who handled the gun, the AD & Baldwin at least, have checked the chamber each time it passed from hand to hand? Again, yes. It is to be hoped that in the future this will become the norm. Especially including actors in the safety chain.
Finally, I'm reading & hearing a great deal about how CGI can supposedly substitute for firearms discharge. Mainly by people who don't seem to know very much about it. I don't either. That's why I'm waiting to see, as in supposedly the next season of The Rookie, what it can actually do.