The AI is broken for some months now, on all difficulties almost never attacks and is completely defensive/passive.
That, paired with the fact that it’s broken since Dominion was added makes me think the AI is always in “Dominion mode” just defending the (non existent) King. Even when not playing Dominion mode.
I’m obviously not 100% sure about this, it’s just a speculation.
But the fact is that it’s completely broken on all difficulties.