Leaderboard: Poor planning or poor circumstances?

If you missed playing Final Fantasy XIV on Saturday, well, you're not getting to play again for a while. The world sort of ended. Unfortunately for the people who were playing Saturday evening into Sunday morning, attempting to actually play during this world-ending event resulted in frequent disconnects and server crashes from the sheer number of people teleporting hither and yon. The epic finale before the trailer wound up mostly just being a confusing mess on the server.

Final Fantasy XIV isn't the first title to implement a huge live event that caused a server-breaking mess. Today, our question centers on magnanimity vs. culpability. When these sorts of server events happen, is your first reaction that the development team should have planned for this popularity instead of letting the whole thing go cross-eyed? Or do you say that the team probably did everything possible and that there's a certain point past which planning doesn't help?
Ever wish that you could put to rest a long-standing MMO debate once and for all? Then welcome to the battle royal of Massively's Leaderboard, where two sides enter the pit o' judgment -- and only one leaves. Vote to make your opinion known, and see whether your choice tops the Leaderboard!