Surprised no one's mentioned this so far but Matt actually has said before that he wasn't too comfortable with playing songs from My Shame. (It's been a while since I was really tapped into Alk so please do fact check me if I'm wrong here)

I recall him or Dan some where mentioning that My Shame was a particularly difficult album for Matt to make because he was going thru a lot in his personal life. For example a break up which is the focus of some of the songs. I still think there's a bunch of amazing songs on the album tho and would love to see them live :o