Sexy women does not equal sexist. Women like to have sex, too. Some women also want to have sex with every attractive male. The one thing required for something to be sexist is for the other sex to object if it happened to them. And I've never seen a woman ask if men would care if they were objectified. And, based on my own personal experience, they don't. Objectification is not sexism. It's objectification.
And if you only played through one game, you can't claim that the other game or even unreleased games are somehow sexist. You've chosen to be ignorant about them. So you've given up the ability to have a valid opinion about them. The most you can argue is that one game was sexist.
And when you go from "One game they created was sexist" to "they are sexist" you've just committed an act of prejudice. When the fact that another game was not sexist, and they even apologized for the sexism in the first game, continuing to hold on to your opinion is far more childish than using trophy sex in a game.