No, just recorded. But there have been records done in that time. Ryan Adams did Rock and Roll and 48 hours over a weekend, written and recorded. It doesn't seem like they spent a ton of time on the recording. So having a full day to write one song and another full day to record one song just doesn't seem like something to document or make a huge deal about.
I feel you're being a little bit of a jerk about this (not trying to be mean). Do you write music at all? I do and know i have songs i have still not finished that i started like 5 years ago and then i have others that i wrote and recorded in 2/3 hours. So doing a whole song in 2 days is pretty good going. Anyway this video is just about having fun and doing something cool, they weren't saying they were doing anything ground breaking or trying to bust any time records, just pointing out the facts of how the song evolved. Personally i love when bands give an insight to any songs they record, it just makes listening a lot more interesting. I enjoyed the video.