I think it's a great idea, and I agree it's quite probable it will be part of the content on the bonus DVD, though I hope we also get some stuff we haven't seen when it comes out too.
I liked the idea of having an introductory video clip too - and really nice to see him come out of himself a bit more. However, I wonder if maybe it's a similar thing to Mark... I mean, I've heard Mark say more in the past 6 months of Crowdieness than every clip I have of the years he was with the band before - maybe he feels more a part of the band now he's not the new guy; and maybe it will take time for Matt to get comfortable - although maybe also he's not used to the whole song-chat-song-song-chat etc type of gig?