I've never noticed that, though I've never found it a problem either. But there are at least three different shroud designs, on of which splits into two halves.
The trickiest bit IMO is accessing the alternator bolts - the big one on the slide. Not too bad in a standard saloon if you take the grille off (mine has a Merc grille attached to the bonnet!) - more difficult in a van with the fixed grille. In an Elf/Hornet the trick is to remove the side grille.
There are more difficult jobs on a Mini. The exhaust to manifold clamp frequently comes loose, and is generally a pig to access - at least to get both hands to it. But the most difficult access I can think of is the bottom end of the speedo cable, especially on automatic cars - I loosen that by tapping against the knurled nut using a hammer and a long screwdriver through the access hole under the radiator!