At 32 seconds into the video, you can see a few frames of a Google Sheet where one column is the name of the sport (you can see "Quidditch" quite a few times) and a second column is a rule, like "The Chasers are there to try and keep posession of the Quaffle...". Looks like one row per rule. Teh filename is "AKQA AI SPORT".
No idea if that's what they used for the actual training, though.
No idea if that's what they used for the actual training, though.