They didn't botch anything--Full linkshells vanished because they all took part in the exploit, not to mention people who "didn't know anything but went along for the ride" got banned as well, they also banned and reverted gil totals of those who took part in the Tavnazia subligar glitch back in mid 2004.
They know how to handle exploitations, they're just more busy getting this game off the ground to honestly do something about exploits and bots. By the by, exploit means more than just the typical implementation, exploiting means, given official response, being afk and leveling while being powerleveled, you're exploiting a bug that way.
Definition:
If you do nothing at all and gaining levels while a higher level friend or friends are killing things, you're exploiting the bug which they basically stated it was.Make full use of and derive benefit from (a resource)