Does anyone really use the pathfinding ability on heroes?
You pay the first 3 ability points essentially to free up a spot that is otherwise taken by an easy-to-get scout providing even better pathfinding (since the scout lowers some terrains, e.g. Desert, down to 2 rather than the 3 move cost the hero gets with 3 ability points in pathfinding). The fourth point is not impressive either.
Am I missing something here? Currently I only ever pick Undead Lore or Intelligence. Maybe divine movement if there is a lot of Lava on the map.
Now if pathfinding would go all the way down to a move cost of one, then I might consider spending 4 ability points - but probably not for 5. Of course, pathfinding should then only apply to non-flyers. Otherwise it would be too powerful.