I have (relatively) long arms and body, dumpy legs and a large, ahem, gut (I should get a marketing firm involved to look at the way I phrase that!) and found a place to be comfortable.
We're all different and the bikes, as sold, are just a starting point for those who care about such things as precise fit, usually because they use their bikes as intended, racing, relaxing or spending long hours in the saddle.
The good news is that most of the small adjustments (saddle position, crank lengths, stem lengths etc) required are relatively cheap and easily reversible.
Also, as Banjo says, could it just be a matter of getting used to it? The move to drop bars took a few hundred miles for me, and only then did I switch saddles, tweak positions and ponder over flipping the stem, just for that last little bit of comfort.