Just what is God's Problem With Babel?

Since we're getting married in a Catholic church we have to go to wedding classes with Father Flynn. These are actually quite interesting, and the Father seems to find it very amusing that I, the heathen, seem to know so much Catholic doctrine *lol*. Anyway he like to give us homework, little passages to read, so I was leafing through Genesis, and I have to ask, what's up with Noah, and just what is God's problem?

Starting with Noah, after The Flood he decides he wants to be a vintner, plants himself a vineyard and gets pissed on his first crop, Fair enough but the guy is either a mean drunk or suffering the worlds first and worst hangover check out Genesis Ch9-

And Noah began to be an husbandman, and he planted a vineyard: And he drank
of the wine, and was drunken; and he was uncovered within his tent. And
Ham, the father of Canaan, saw the nakedness of his father, and told his two
brethren without. And Shem and Japheth took a garment, and laid it upon
both their shoulders, and went backward, and covered the nakedness of their
father; and their faces were backward, and they saw not their father's
nakedness. And Noah awoke from his wine, and knew what his younger son had
done unto him. And he said, Cursed be Canaan; a servant of servants shall he
be unto his brethren. And he said, Blessed be the LORD God of Shem; and
Canaan shall be his servant. God shall enlarge Japheth, and he shall
dwell in the tents of Shem; and Canaan shall be his servant.

And what about Babel?

And the LORD came down to see the city and the tower, which the children of men
builded.
And the LORD said, Behold, the people is one, and they have all one
language; and this they begin to do: and now nothing will be restrained from
them, which they have imagined to do.
Go to, let us go down, and there
confound their language, that they may not understand one another's speech.
So the LORD scattered them abroad from thence upon the face of all the
earth: and they left off to build the city.
Therefore is the name of it
called Babel; because the LORD did there confound the language of all the earth:
and from thence did the LORD scatter them abroad upon the face of all the earth.

Yes, but why? I know "He" is supposed to work in mysterious ways but that just seems mean. I knew I should have paid more attention in RE.