I presume you've got short legs and a long torso, proportional to your overall height. Otherwise that saddle would be way low.
That must be the case, because the saddle is just right. I'm not 100% about the stem, but the saddle has been in that spot for close to 1500 miles and it is fine.
Look at your top tube. It is horizontal. Many frames have downward sloping toptubes, so by the time they are at the seatpost they are quite a bit lower than horizontal top tube bikes - resulting in more exposed seat post.
True. But if I got the top tube length right, it's still smaller than mine. So hard to find pro riders' bike specs.