That's standard procedure on a film set. Thousands of blanks a year are fired while pointing at people. That's literally the point of blanks.

Judging by the downvotes, this seems to be a common thought here. Let me cite some applicable industry standards: https://www.actorsequity.org/resources/Producers/safe-and-sanitary/safety-tips-for-use-of-firearms/

Treat all guns as if they are loaded and deadly.

Never point a firearm at anyone including yourself. Always cheat the shot by aiming to the right or left of the target character. If asked to point and shoot directly at a living target, consult with the property master or armorer for the prescribed safety procedures.

https://www.csatf.org/01_safety_bltn_firearms/

It is important that everyone treat all firearms, whether they are real, rubber, or replica firearms as if they are working, loaded firearms.

Anyone handling the firearm will refrain from pointing a firearm at any person, including themselves. If it is necessary to aim a firearm at another person on camera, the Property Master will be consulted to determine available options. Remember: a firearm, including one loaded with blanks, can inflict severe damage to anything/anyone at which/to whom the firearm is pointed.

And I want to re-iterate, Baldwin did not shoot another actor who his character shoots in the film. He was not supposed to have his finger on the trigger for this shot, nor was he even supposed to fully draw his weapon. This was not the first time he pointed a gun at a camera person and fired off-script; the footage played in the trial showed him shooting directly at the camera after the director yelled "cut".

And again: even if it were industry standard to shoot blanks directly at another person: that's a stupid and reckless standard, and any reasonable person should refuse. I really feel like most of the defense of Baldwin is borne out of well-meaning ignorance.