Further to my post above, I remembered about units not following terrain slope/angle in AoE4. I made a post which I cant find anymore (probably it was in the beta forums pre-release) where I was showing that in CoH1, which is the same engine but an even older out of date version, units were following the terrain slope just fine. So it is perfectly possible with the Essence Engine, which leaves the only explanation as to why it’s not in AoE4 as well to either laziness or incompetence.
I will link another post that I could find made by someone else about the same issue, albeit it doesnt show how in CoH it is perfectly possible.
And here are pictures about this issue from another forum:
Looks ridiculous and cheap. Notice there was none of that stupid obstructing fog in CoH1 either (not talking about fog of war, but that crappy distant white fog in the distance even in discovered terrain) and camera could be moved freely.
So how do you explain this if not by lazy or incompetent devs?