Yes, but it misses the fundamental fact that fashions in frame size have changed a lot in the last 30 years. People used to ride big frames with short seat posts. When I went into a bike shop in 1978 they fitted me to 62 cm frame. If I went in to a shop today, they'd probably try to sell me a 56.
+1. I have short legs compared to my torso, so I don't have a lot of post showing. Why have an extra 10 CM of seatpost inside the frame when I don't need it?