The reason this happened is because for once an event happened, an event that was available for everyone to take part in. It wasn't an event catered towards builders or a special group, it was free for everyone to join and that is why people came online. To have a laugh. To have fun. These events bring the community together and we need more of them.
@Darth I got an idea for you:
Minigame with a build battle before the minigame - lets builders get involved then players have fun