I think they may have something. They qualify trends. Habits. Tendencies. Situational behavior.
I used to track/hunt men. I could follow a track for a bit and learn a lot about that person. Things most folks would never think about - I was looking for his tendencies. To step over something - folks tend to use the same foot - and when a trail splits around an obstacle - they tend to go to the same side again and again - right or left. Good thing to know for several reasons.
I tracked a man once - got a profile - broke out the map - and actually beat him to his destination.
That's what these guys do - note the nuances - the patterns - the tendencies - and they can often predict using solid, statistically data - what they're likely to do in that particular situation, at that position on the field.
There's a few folks here that when UM was playing - could make a call as to what our OC was going to call - as they were so predictable.
That's the one thing that will destroy an offense. Tendencies - not well executed.