It is an absolutely critical element of creating a safe environment. The game officials on the field are ultimately responsible for the enforcement of the rules. Those rules are designed in large part to keep the players safe.
We spend time every year.... We do training and development with our officials. We do ongoing training with them. They review their game films with members of our league office regularly, to show where there are areas for improvement. I think it is an absolutely critical element of the sport's ecosystem.
Sadly, we need to get more people involved in officiating. There are statistics that would suggest that 80% of everyone who starts a career in officiating leaves at the end of their first season, because they're largely abused and criticized, and it's not fun for them. We have to think about creating a culture for officiating to flourish.