I just hope they don't try to pin this on the controller who was on duty and move on without putting plans in place for some sort of structural change. Controllers are forced to work 60+ hour weeks and overnight shifts, and the controller in question was working both ground and air control simultaneously due to staffing shortages. If you listen to the ATC audio, he was handling finding a spot for a plane that aborted takeoff and declared an emergency, while calling emergency services for that plane, while coordinating multiple planes coming in to land, while also coordinating multiple planes trying to take off. With that kind of workload, an accident like this is an eventuality. Even after the fatal accident happened, he had to work for at least another hour before he could get relieved of his duty. Hopefully something will happen to fix this at some point rather than us collectively deciding that an accident or two per year is worth the cost savings of not keeping ATC properly staffed.

The NTSB - and aviation in general - as much as possible tries to avoid "pinning" issues on individuals. The purpose of an investigation isn't to ascribe blame, it's to try to understand what happened and how to prevent it from happening again, and prescribing "don't make mistakes" is not a realistic or useful method for preventing accidents from recurring.