I fail to see why differences in heights make any more of a difference than other physical characteristics such as eye or hair color.
The sole exception I could see is if the couple were obsessed with having sexual intercourse only in a standing position. Then vast height differences could be problematic.
What I lack in height I make up for in length.
It is just another physical attraction. Some men like redheads and some like blondes. I have always been attracted to dark haired, blue eyed, tall men. Partially because I am 5’9 I guess. Can’t explain the other 2. lol