Very clever! I don’t think it comes across as “yuck, the old version was sooooo lame” but I can see how some might feel that way. But I think this is a very understandable explanation of why we’ll be saying new words at Mass come Advent 2011. I’d love to use this in a classroom to kick off a discussion. You could even do skits with cards that had the old/new wording and have kids act out “Old Thomas” and “New Thomas.”
Related – I like these Order of Mass pew cards with the new order of Mass.