think the point is that they can't just "learn to do that", because to do so would mean solving human mind (that famously hasn't been going well)
OK, the agents don't click in the same way as humans. You learn that, what about mouse hovering telemetry, time spent, etc. And one of the most extreme is to force biometrics - a lot of telemetry, breaks the interface a lot - but hey, you have assurance.
And none of these tradeoffs require understanding the deep processes of the human mind. Just, map is not the territory, how you do game the map harder and harder and how do the mapmakers respond to that?
Whatever mechanism the paper proposes, rest assured it can be trained on.