Ubiquitous sensors have probably automated out many aspects of this. NFL players now have tracking beacons which must make some assessments trivial (what players were on the field?)

I wonder. I suspect there is enough messiness that most of it cant be yet but who knows.

It's easy enough to track objects on the field (I say easy enough, it's a lot of work), but in terms of tracking game state, that's all still done by stringers.