Is it just me?

[Narwan]

Yep, I put my foot in my mouth there. I actually looked at the different terrain tiles in the editor before that post and completely overlooked the 'add tilled fields' one.

Still doesn't mean it's coverless terrain. The Lambert map itself is a good example, it shows a number of big swanks of tilled area's. May appear as a big open pieces of land but was it that in reality? The answer is no.
Fields, tilled or not, are separated from each other physically. In northwest europe in particular (holland, most of belgium, northern france, northern germany and much of western germany) the ground water table is very high and water management very important. Fields are usually separated by water ditches which are effectively trenches. Nowadays individual fields have gotten larger but back then the average field was at most 100m by 100m (and often not square but a bit elongated) before you ran into the next ditch. In other words, on average a field hex in the game has these 'trenches' on at least half it's sides. Pretty good for cover. And that's off course assuming there's nothing else around for cover, like for example the terrain slightly rolling (you need only 1ft difference to be covered when you're flat).
The episodes of band of brothers where they're fighting in Holland are a good illustration as just about every one of those episodes has them use these types of ditches for cover and movement when in 'clear' terrain or fields.

As you go further south and deeper inland in europe ditches become less of a feature (but still present) and stone walls and lines of vegetation a more common boundary between fields (like the infamous hedgerows). They too offer cover.

An infantry squad moving slowly, 1 hex per turn, mimics a squad moving through the trenches or covered by the walls etc with only a couple of guys exposed at any one time.
Move two hexes per turn and you 'll still make use of cover but not fully and usually at least half the guys are exposed (or for example walking besides a 3 ft high stone wall, you all stick out but can get to immediate cover).
Move full speed (3 hexes) and just about everyone is exposed just about the entire turn.

4. routed infantry that suddenly rally and close assault adjacent units.

That's WaW. Doesn't happen in SPWW2.

Btw, not I nor the designers will ever claim this to be the most realistic wargame. In fact we go out of our way to illustrate the limits of the game so that players don't have unrealistic expectations of what to expect from the game.

Narwan