Her point is kind of valid, in that he totally just brought a random person into their home from a business trip -- presumably he's an only child, meaning she missed her only child's wedding -- but then veers into shittiness:

Fanny: "And then you bring her in here, and she proceeds to parade around in shorts..."
Michelle: "What do you have against shorts?"
Fanny: "No real lady wears shorts."
Michelle: "In what century are we having this conversation?"
Fanny: "Oh my God the quips, the chatter, don't you ever just shut up?"

Michelle -- in the face of this stunning indictment of not only herself but season upon season of Gilmore Girls itself -- flees once more. So then Hubbell gives yet another speech, to the party at large, about how they will be treating Michelle from now on. So basically what happens in this pilot of a TV show is that Fanny says a bunch of totally awesome shit, and then Michelle runs away, and then Hubbell makes a speech. Sometimes to his mom, sometimes to his wife, but either way that's what's going to happen. Eleven times, and it's awesome each time.

STUDIO - TEEN BEER PARTY

Sasha: "I think my dad is gay."
Teens: "Like, in the way where you're a bitch and would use that word that way? Or like your father is a homosexual. And if the latter, why?"
Sasha: "Just a feeling."
Teens: "I would love a gay dad. So many are these days, and it seems so fun. All that shopping and baking..."
Ginny: "That is fucking offensive."

Yeah, I had a feeling Ginny Bosoms would end up my favorite.

Things continue in this vein -- with Boo hopping around like a weirdo, and Sasha having chilled out but still being an asshole, and Melanie being super boring and drunk, and Ginny not really feeling Sasha's Susan May Pratt bullshit -- for some time. Just as Melanie's telling Boo to go be friends with Michelle, who must have been drunk herself to marry Hubbell (smart girls), Michelle appears and they all scatter, terrified.

Michelle, snagging the sixer and trashing it: "Hiya, gals! You having a little private party? Can I crash?"

She rambles about beer for a while, and then once it's in the trash she engages them in some friendly conversation, checking out all the pictures on the walls and asking about them. From this we discern: All the girls are in love with Fanny, which they damn well should be; sometimes their recitals have weird/quirky themes, such as "Sucky Xmas Gifts" where they are all dressed as socks; and Fanny once danced with the Ballet Russe de Monte Carlo.