I don't think it was quite as big a mess as people think. The thing is you never hear from most of the people for whom it works, right?
I bought two, and activated them both with little trouble. The second one took a while (6-7 minutes), but I wouldn't call that a mess.
It would seem to me that the delays due to load on the AT&T system Friday night in particular would have happened either way.
What is certain, though, is those lines would have been very frustrating if each customer had to be activated. That would have taken forever.