It's been a long game of will-they-or-won't-they when it comes to the Olsen twins appearing on Fuller House [1], and now that we definitely know that they are declining to make a cameo [2], we're left with one question: why? A new article from this week's issue of People, which includes quotes from executive producer Bob Boyett, sheds some light on their decision [3]. "Ashley said, 'I have not been in front of a camera since I was 17 and I don't feel comfortable acting,'" he said. "Mary-Kate said, 'It would have to be me because Ash doesn't want to do it. But the timing is so bad for us.'" It's a bummer, but at least we know how the show will explain Michelle's absence [4].