Annalex, it isn't what I read into it but it is what it means. I was also surprised, to say the least, that it meant that.
Leviticus 20:12 And if a man lie with his father's wife hath uncovered his father's nakedness: both of them shall surely be put to death; their blood shall be upon them.
17....he hath uncovered his sister's nakedness; he shall bear his iniquity.
Gen.1:21.And he drank of the wine, and was drunken; and he was uncovered within his tent.
22.and Ham, the father of Canaan, saw the nakedness of his father, and told his two brethren without.
Seeing your father in a naked state may not be pretty but it wouldn't cause the birth of a child.
....Ping
It is still a complete speculation; Ham did not even uncover his father, but merely saw him uncovered.