Well, I guess because I was editorialising!! I found it sensational at the time. That was the first time I had looked at a site and said to myself "well that must be Flash(TM)", and then a second later in my head thought "well fair enough, you'd HAVE to use Flash(TM) to get that kind of experience for a major brand", then right-clicked on the page only to see the standard context menu... no "Zoom in"!!
I was really quite blown away. I could have just put it on my blog then posted that to HN (which is actually what pg said I should have done when he emailed me), but my initial thoughts, were that I really just wanted to share this with my pals on HN (similar to the way someone else had posted Ben the Bodyguard as a "Gorgeous HTML5 implementation" or something) and that putting it on my blog then linking to my blog from HN would just be viewed by the community as me jockeying for traffic and being self-promotional!