I think a problem a lot of people have with assessing the importance of face offs is they just use the aggregate value (team percentage, player percentage over a course of a season) over the situational value. Most goals your team scores in a year within ~10-15 seconds of a stoppage can probably be attributed to a key face off win and usually a set play off the win. I’d argue that number bounces up to ~30 seconds on a power play, where a defensive win usually means an easy clear to start and then the offensive team trying to get set up in the zone. After an icing call is an extremely important faceoff situation as well, where it’s the difference between getting tired players hemmed in or a quick change. Final minute of any period it will probably lead to your team controlling the remaining chances for the rest of the period, and in the final frame it can be the difference in you getting your goalie out for an extra attacker for an extra 30 seconds to a minute.
It’s why in post-game pressers you’ll hear the coach and players mentioning “key draw wins”. The average neutral zone faceoff doesn’t have too much impact on a game, and even the average offensive/defensive draw probably only adds slight value. I believe faceoff stats need a more in depth approach as we have taken with shots. We now separate shots into low danger, medium danger, and high danger; info that is made publically accessible to all. If we could separate faceoff stats into low danger (neutral zone), medium danger (offensive/defensive zone) and high danger (special teams, post-icing, empty net etc.), it would go a long way to showing what centers are adding value to their teams. I’d be willing to bet a lot of centers numbers either sky-rocket or falter on the more important draws.