Yep just like "Vegas" had them for all those decades yet we as hardcore fans only had access to the most primitive of stats. There is a story to be told how they kept those to themselves all those years, or, why no fans took it upon themselves to do it. Or what happened to someone who tried lol.
It's mind boggling to me how long it took for NFL advanced stats to become common place. So late to the game especially with only 16 games a year and 100 plays to document what happened. Meanwhile, MLB 162 games was tracking every pitch 10 years beforehand. NHL tracking every players TOI and shot heat charts for 84 games.
Heck, we didnt even have a salary cap site to reference until recent years.