Hiding units is a nonsense in TW Warhammer (Mortal Empires)

So ive played every TW game since its conception and Warhammer or Mortal empires to be exact is the only TW game where you cant 'Hide' units.

The AI makes a b-line straight for them, no its not 'flushing out', or randomly encountering them, nor is it because of predatory senses, nor is it because im trying to hide a 20ft monster.

Scenario: Playing as Empire, i can have almost all my units in plain sight in one corner of the map. I could have a single unit of crossbows the opposite side of the map, deep in a forest, behind a hill or a cliff. They are 'IMPOSSIBLE' to see.

The AI will go STRAIGHT for them. Not in the 'general' direction, not because there performing a flanking manoeuvre and "oh look theirs an enemy unit of crossbows behind that hill in the forest", and not because a random scout got close....literly STRAIGHT for them at running pace!!!

What a load of unrealistic nonsense that renders an age old (and real tactic) pointless.!