Yes, the armorer was completely incompetent. Whoever was the producer who hired her should take responsibility for giving a safety-critical job to someone with no training.
Especially if that same producer had been told repeatedly that the production was unsafe including previous “misfires” meaning the gun worked exactly as designed.
Especially if that producer created protocols allegedly for COVID that prevented the armorer, as incompetent as she was, from actually being on set during the takes.
Especially if that producer also put bullet proof glass in front of the filming equipment but not the humans.
Especially if that producer also picked up a gun, failed to check that it was actually loaded, aimed it at a human being, and pulled the trigger.
I just checked the IMDB. These are the credited producers (apparently listed alphabetically):
Alec Baldwin ... producer
Kc Brandenstein ... co-producer
Allen Cheney ... executive producer
Matt DelPiano ... producer
Tyler Gould ... executive producer
Matthew Helderman ... executive producer
Nathan Klingher ... producer
Anjul Nigam ... producer
Emily Hunter Salveson ... executive producer
Ryan Donnell Smith ... producer
Luke Taylor ... executive producer
Ryan Winterstern ... producer
So there are six producers, and five executive producers and one co-producer.
In film (as opposed to TV), executive producers are often just silent investors or prominent people who lent their name and connections to help make the film happen. Not always, but often.
The co-producer is low in rank. Possibly a title given to someone as payment for a small service in lieu of more money. Actually, minor producer titles (especially associate producer, which ranks below co-producer) are often (not always) given to friends and lovers who had nothing much to do with the film.
The producers would be the decision makers in terms of who gets hired, and how the money is spent.
Even so, the director is captain of the ship. The one who controls what happens on set. The buck stops at his desk. Producers are analogously more like the owners of the ship.