I don't think it is. The columnist answered that in her column: in matters of the family she's subject to him. In matters of the country, she'll be subject to whomever tells her what to do, i.e. McCain. For one thing, she's no Cheney.
I think the "secular left" is going to have to modify some of its rhetoric, and be more focused regarding Palin. There are too many reckless accusations being thrown around. Or it could just let the Republican party tear itself apart over her, because the more attacks she gets from outside the party, the more the religious vote will circle the wagons around her.