I am surprised he would comment on this
https://www.mediaite.com/entertainment/knives-out-star-michael-shannon-declares-baldwin-shooting-boils-down-to-being-cheap-smaller-productions-cut-corners-ridiculously/
But he's not criticising Baldwin.
... part of a growing standard practice in Hollywood to make things on the cheap and cut corners.
[...]
The actor said he’s seen gun safety standards and awareness deteriorate as producers seek to make cheaper and cheaper product.
[...]
They whittle the budget down to the bare minimum — but the one thing you can’t cut corners on is your armorer. If you have guns in your movie, that’s no place to cut corners.
[...]
... it was ultimately the armorer’s responsibility to make sure the weapon was safe. He argued that if proper procedure had been followed, Baldwin would have been handed a gun he could see was empty.
“The armorer should’ve brought the gun over to him and said: Here is your firearm. It is empty. Or maybe [the gun] has decoy or dummy rounds in it; you pull the trigger, nothing happens,” he said. “But you never settle for walking up to an actor and handing the gun over without showing them what’s inside of it. Ever. That was the cataclysmic event on ‘Rust.'”