Possibly, but I’m not sure how many simultaneous APM the AI does for priests, or if they cheat to do what appears to you to be auto-conversions. (I say ‘to you’ because I really don’t have any recent firsthand personal experience on this for AoE1:DE, and it sounds like you think they do auto-conversions.)
At the same time, the AI needs to be able to be a challenge for humans and to keep up with them, and/or surpass their gameplay, and so there will probably be some elements that seem unreal or ‘auto’.
But until the AI can completely mimic human gameplay behavior through deep learning, I think it’s fairly reasonable to have the AI be a little more efficient than humans with priests and other things, as long as it doesn’t get too unrealistic or gives too much of an appearance of a robot playing