Celebrated? That's not how I remember it at all. From what I recall, everyone pretty much immediately understood what was about to be lost and mourned it when it was gone. There was a huge effort to archive all the flash content people could find, so many people obviously felt flash content was worth preserving. I've got a flash emulator that natively has pretty much every flash game and animation I remember from when I was a kid. I might have to boot it up for a bit tonight for old time's sake.