I'm a little late, as usual, but:

Here's another thought, guys:

Has anyone considered the no doubt millions of premonitions about the pope that never come true? I'll bet they occur regularly, and even are occasionally tweeted.

My point is that when you're dealing with a person as popular as the pope, you're going to have many, many people having premonitions about him happening regularly (probably happens to folks like Beyonce, too). Most of them will be wrong, but probability suggests that eventually someone's going to get one right.

What is that cliche? Park a monkey in front of a typewriter long enough, and he'll write shakespeare? I think this is similar, and might tie into what Zoth has been explaining.

Sure, it might have been a premonition, defying all known laws of space and time (that would be very cool), or it could have been a pure coincidence sourced in random chance, or it could have simply been the one voice out of thousands shouting individual unrelated things that happened to get it right. Though the first is the most fun, the last, by any measure, is the most likely... shouldn't it at least be considered?