No, most of the Nordic jackets I've seen have a little extra length in the back actually, as one leans forward a bit in skiing as well, and a draft over the kidneys is never enjoyable... The arms could be a problem for a very long-armed person, I suppose. I'm sure the rider's position and body proportions would make a difference also - I don't actually ride in all that hunched a position, myself, plus I am quite short through the torso (long limbs).

You can also avoid the exposure issue by wearing pants/tights that are cut a bit higher in the back. Cross-country oriented softshell pants often have this, and of course cycling-specific pants/tights almost always do.

Running jackets have the problems you describe, as they are definitely cut for a very upright body position.